I have a function cal_power that called many times (3000times) in my main project. It uses the loop-up table way to perform computing the power of a scale number (follows some rule to make the table). The TABLE is a vector 1x510.
In my current solution, for each time the function cal_power is called, the TABLE is initialization again, thus it takes some waste time. We know that the value in TABLE is fixed, do we have anyway in MATLAB to initialize the value of TABLE just one time, and it can access anywhere? I tried to use a global variable but it spends more time than my current solution. Thanks
function p = cal_power( ii )
% Input: ii: Integer in {0,255} (forced to be, if not)
% Output:
% p = TABLE( mod( ii, 255) + 1 );
% TABLE : look-up table
TABLE = [1, 2, 4, 8, 16, 32, 64, 128, 29, 58, 116, 232, 205, 135, 19, 38, 76,...
152, 45, 90, 180, 117, 234, 201, 143, 3, 6, 12, 24, 48, 96, 192, 157,...
39, 78, 156, 37, 74, 148, 53, 106, 212, 181, 119, 238, 193, 159, 35,...
70, 140, 5, 10, 20, 40, 80, 160, 93, 186, 105, 210, 185, 111, 222,...
161, 95, 190, 97, 194, 153, 47, 94, 188, 101, 202, 137, 15, 30, 60,...
120, 240, 253, 231, 211, 187, 107, 214, 177, 127, 254, 225, 223, 163,...
91, 182, 113, 226, 217, 175, 67, 134, 17, 34, 68, 136, 13, 26, 52,...
104, 208, 189, 103, 206, 129, 31, 62, 124, 248, 237, 199, 147, 59,...
118, 236, 197, 151, 51, 102, 204, 133, 23, 46, 92, 184, 109, 218,...
169, 79, 158, 33, 66, 132, 21, 42, 84, 168, 77, 154, 41, 82, 164, 85,...
170, 73, 146, 57, 114, 228, 213, 183, 115, 230, 209, 191, 99, 198,...
145, 63, 126, 252, 229, 215, 179, 123, 246, 241, 255, 227, 219, 171,...
75, 150, 49, 98, 196, 149, 55, 110, 220, 165, 87, 174, 65, 130, 25,...
50, 100, 200, 141, 7, 14, 28, 56, 112, 224, 221, 167, 83, 166, 81,...
162, 89, 178, 121, 242, 249, 239, 195, 155, 43, 86, 172, 69, 138, 9,...
18, 36, 72, 144, 61, 122, 244, 245, 247, 243, 251, 235, 203, 139, 11,...
22, 44, 88, 176, 125, 250, 233, 207, 131, 27, 54, 108, 216, 173, 71,...
142, 1, 2, 4, 8, 16, 32, 64, 128, 29, 58, 116, 232, 205, 135, 19, 38,...
76, 152, 45, 90, 180, 117, 234, 201, 143, 3, 6, 12, 24, 48, 96, 192,...
157, 39, 78, 156, 37, 74, 148, 53, 106, 212, 181, 119, 238, 193, 159,...
35, 70, 140, 5, 10, 20, 40, 80, 160, 93, 186, 105, 210, 185, 111,...
222, 161, 95, 190, 97, 194, 153, 47, 94, 188, 101, 202, 137, 15, 30,...
60, 120, 240, 253, 231, 211, 187, 107, 214, 177, 127, 254, 225, 223,...
163, 91, 182, 113, 226, 217, 175, 67, 134, 17, 34, 68, 136, 13, 26,...
52, 104, 208, 189, 103, 206, 129, 31, 62, 124, 248, 237, 199, 147,...
59, 118, 236, 197, 151, 51, 102, 204, 133, 23, 46, 92, 184, 109, 218,...
169, 79, 158, 33, 66, 132, 21, 42, 84, 168, 77, 154, 41, 82, 164, 85,...
170, 73, 146, 57, 114, 228, 213, 183, 115, 230, 209, 191, 99, 198,...
145, 63, 126, 252, 229, 215, 179, 123, 246, 241, 255, 227, 219, 171,...
75, 150, 49, 98, 196, 149, 55, 110, 220, 165, 87, 174, 65, 130, 25,...
50, 100, 200, 141, 7, 14, 28, 56, 112, 224, 221, 167, 83, 166, 81,...
162, 89, 178, 121, 242, 249, 239, 195, 155, 43, 86, 172, 69, 138, 9,...
18, 36, 72, 144, 61, 122, 244, 245, 247, 243, 251, 235, 203, 139, 11,...
22, 44, 88, 176, 125, 250, 233, 207, 131, 27, 54, 108, 216, 173, 71,...
142];
p = TABLE( mod( ii, 255) + 1 );
Just use Matlab Persistent Variable:
function p = cal_power( ii )
% Input: ii: Integer in {0,255} (forced to be, if not)
% Output:
% p = TABLE( mod( ii, 255) + 1 );
% TABLE : look-up table
persistent TABLE;
if isempty(TABLE)
TABLE = [1, 2, 4, 8, 16, 32, 64, 128, 29, 58, 116, 232, 205, 135, 19, 38, 76,...
152, 45, 90, 180, 117, 234, 201, 143, 3, 6, 12, 24, 48, 96, 192, 157,...
39, 78, 156, 37, 74, 148, 53, 106, 212, 181, 119, 238, 193, 159, 35,...
70, 140, 5, 10, 20, 40, 80, 160, 93, 186, 105, 210, 185, 111, 222,...
end
UPDATE:
The following Code featuring the persistent variable took 0.034 seconds on my machine compared to 0.039 seconds without persistent:
tic
for i=1:3000
ii = round(rand*254)+1;
p=cal_power(ii);
end
toc
So I don't see that it is slower at all. Especially not by a factor 5.
If you still need a different solution, initialize the TABLE in the beginning of your main-function and just pass it to cal_power as additional parameter.
function p = cal_power( ii , TABLE)
% don't initialize TABLE here anymore
...
end
This way you make sure that TABLE only gets initialized once. Passing the variable as a reference should not consume much computation time too.
Related
I have this code written in dart(Flutter) that implements an SSH client using this package SSH.
import 'package:flutter/material.dart';
import 'package:ssh/ssh.dart';
void main() => runApp(Home());
class Home extends StatefulWidget {
#override
_HomeState createState() => _HomeState();
}
class _HomeState extends State<Home> {
String out = "";
void send() async {
setState(() {
out = "";
print(out.codeUnits);
});
SSHClient client = new SSHClient(
host: "192.168.10.88",
port: 22,
username: "Jesus",
passwordOrKey: "******",
);
await client.connect();
await client.startShell(
ptyType: "vanilla",
callback: (dynamic res) {
setState(() {
out += res;
print(res.codeUnits);
/*
print output:
[27, 91, 50, 74, 27, 91, 109, 27, 91, 72, 77, 105, 99, 114, 111, 115, 111, 102, 116, 32, 87, 105, 110, 100, 111, 119, 115, 32, 91, 86, 101, 114, 115, 105, 111, 110, 32, 49, 48, 46, 48, 46, 49, 57, 48, 52, 49, 46, 51, 56, 56, 93, 27, 93, 48, 59, 67, 58, 92, 87, 73, 78, 68, 79, 87, 83, 92, 115, 121, 115, 116, 101, 109, 51, 50, 92, 99, 111, 110, 104, 111, 115, 116, 46, 101, 120, 101, 7, 27, 91, 63, 50, 53, 104, 10]
[40, 99, 41, 32, 50, 48, 50, 48, 32, 77, 105, 99, 114, 111, 115, 111, 102, 116, 32, 67, 111, 114, 112, 111, 114, 97, 116, 105, 111, 110, 46, 32, 65, 108, 108, 32, 114, 105, 103, 104, 116, 115, 32, 114, 101, 115, 101, 114, 118, 101, 100, 46, 10]
[27, 91, 53, 50, 88, 10]
*/
});
},
);
//await client.writeToShell("cd\r\n");
Future.delayed(
const Duration(seconds: 5),
() async => await client.closeShell(),
);
}
#override
Widget build(BuildContext context) {
return MaterialApp(
home: Scaffold(
appBar: AppBar(title: Text("SSH")),
body: Container(
child: Column(
children: <Widget>[
FlatButton(
child: Text("Send Command"),
onPressed: send,
),
Text(out),
],
),
),
),
);
}
}
However, when i run the program and start the client, the output from the emulated shell is garbage, like so
Image
.
I think i need to do some kind of decoding to interpret the escape character "27", but i don't know how.
I have these three lists of decimal char codes from ascii table.
[27, 91, 50, 74, 27, 91, 109, 27, 91, 72, 77, 105, 99, 114, 111, 115, 111, 102, 116, 32, 87, 105, 110, 100, 111, 119, 115, 32, 91, 86, 101, 114, 115, 105, 111, 110, 32, 49, 48, 46, 48, 46, 49, 57, 48, 52, 49, 46, 51, 56, 56, 93, 27, 93, 48, 59, 67, 58, 92, 87, 73, 78, 68, 79, 87, 83, 92, 115, 121, 115, 116, 101, 109, 51, 50, 92, 99, 111, 110, 104, 111, 115, 116, 46, 101, 120, 101, 7, 27, 91, 63, 50, 53, 104, 10]
[40, 99, 41, 32, 50, 48, 50, 48, 32, 77, 105, 99, 114, 111, 115, 111, 102, 116, 32, 67, 111, 114, 112, 111, 114, 97, 116, 105, 111, 110, 46, 32, 65, 108, 108, 32, 114, 105, 103, 104, 116, 115, 32, 114, 101, 115, 101, 114, 118, 101, 100, 46, 10]
[27, 91, 53, 50, 88, 10]
When i decode to UTF-8 i have this.
[2J[m[HMicrosoft Windows [Version 10.0.19041.388]]0;C:\WINDOWS\system32\conhost.exe[?25h
(c) 2020 Microsoft Corporation. All rights reserved.
[52X
How can i avoid these special characters? I noticed that the "escape"(27) character is causing it.
These are ANSI escape codes. They control the behavior and appearance of text terminals and terminal emulators: for example, they can clear the screen, move the cursor, or change the color of text.
These codes can get pretty complicated, especially with style formatting, but the ones in the example you give are easily recognized and removed with a regular expression. You don't tag a programming language, but here is how you might do it in JavaScript.
var with_ansi_escapes = "\033[2J\033[m\033[HHello"
var without_ansi_escapes = with_ansi_escapes.replace(/\033\[\d*[A-Za-z]/g, "")
We use EFK-stack, where F stands for fluent bit. In my kotlin spring boot application I configured logging as follows with logback and logstash
<appender name="STDOUT_JSON" class="ch.qos.logback.core.ConsoleAppender">
<encoder class="net.logstash.logback.encoder.LogstashEncoder" >
<timestampPattern>yyyy-MM-dd' 'HH:mm:ss.SSS</timestampPattern>
<fieldNames>
<timestamp>timestamp</timestamp>
<logger>logger</logger>
<version>[ignore]</version>
</fieldNames>
</encoder>
</appender>
We run that application in kubernetes. Now, sometimes for very verbose exceptions i.e. folowing, we see in kibana not parsed log entry. So there is neither logger detected by kibana, nor message, although those fields are in json.
{"timestamp":"2018-07-11 12:59:40.973","message":"Container exception","logger":"org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer","thread_name":"org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1","level":"ERROR","level_value":40000,"stack_trace":"org.apache.kafka.common.errors.SerializationException: Error deserializing key/value for partition offer-mail-crawler-new-mails-2 at offset 2. If needed, please seek past the record to continue consumption.
Caused by: org.apache.kafka.common.errors.SerializationException: Can't deserialize data [[123, 34, 101, 118, 101, 110, 116, 73, 100, 34, 58, 34, 98, 51, 57, 100, 49, 102, 54, 49, 45, 99, 57, 51, 53, 45, 52, 48, 52, 53, 45, 57, 52, 51, 51, 45, 98, 49, 100, 98, 98, 54, 97, 57, 49, 48, 49, 53, 34, 44, 34, 101, 118, 101, 110, 116, 84, 105, 109, 101, 34, 58, 123, 34, 110, 97, 110, 111, 34, 58, 50, 56, 51, 49, 50, 57, 48, 48, 48, 44, 34, 101, 112, 111, 99, 104, 83, 101, 99, 111, 110, 100, 34, 58, 49, 53, 51, 49, 51, 49, 50, 48, 56, 48, 125, 44, 34, 101, 118, 101, 110, 116, 86, 101, 114, 115, 105, 111, 110, 34, 58, 34, 50, 48, 49, 56, 45, 48, 55, 45, 49, 49, 34, 44, 34, 115, 104, 97, 114, 101, 100, 77, 97, 105, 108, 98, 111, 120, 34, 58, 34, 111, 102, 102, 101, 114, 115, 46, 116, 101, 115, 116, 64, 97, 107, 101, 108, 105, 117, 115, 46, 100, 101, 34, 44, 34, 97, 122, 117, 114, 101, 83, 116, 111, 114, 97, 103, 101, 77, 97, 105, 108, 65, 115, 69, 109, 108, 66, 108, 111, 98, 78, 97, 109, 101, 34, 58, 34, 55, 97, 98, 54, 49, 57, 52, 97, 45, 99, 57, 101, 98, 45, 52, 55, 99, 53, 45, 56, 53, 54, 51, 45, 56, 52, 54, 54, 53, 48, 99, 51, 52, 57, 99, 48, 47, 109, 105, 109, 101, 45, 99, 111, 110, 116, 101, 110, 116, 46, 101, 109, 108, 34, 44, 34, 97, 122, 117, 114, 101, 83, 116, 111, 114, 97, 103, 101, 65, 116, 116, 97, 99, 104, 109, 101, 110, 116, 66, 108, 111, 98, 78, 97, 109, 101, 115, 34, 58, 91, 93, 44, 34, 102, 114, 111, 109, 34, 58, 34, 82, 111, 109, 97, 110, 46, 84, 117, 99, 104, 105, 110, 64, 97, 107, 101, 108, 105, 117, 115, 46, 100, 101, 34, 44, 34, 115, 117, 98, 106, 101, 99, 116, 34, 58, 34, 116, 101, 115, 116, 34, 125]] from topic [new-mails]
Caused by: com.fasterxml.jackson.module.kotlin.MissingKotlinParameterException: Instantiation of [simple type, class com.akelius.crawledmails.NewMailEvent] value failed for JSON property azureStorageMailUuid due to missing (therefore NULL) value for creator parameter azureStorageMailUuid which is a non-nullable type
at [Source: [B#66872193; line: 1, column: 350] (through reference chain: com.akelius.crawledmails.NewMailEvent["azureStorageMailUuid"])
at com.fasterxml.jackson.module.kotlin.KotlinValueInstantiator.createFromObjectWith(KotlinValueInstantiator.kt:53)
at com.fasterxml.jackson.databind.deser.impl.PropertyBasedCreator.build(PropertyBasedCreator.java:138)
at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:471)
at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1191)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserializeFromObject(BeanDeserializer.java:314)
at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:148)
at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:1626)
at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:1237)
at org.springframework.kafka.support.serializer.JsonDeserializer.deserialize(JsonDeserializer.java:86)
at org.apache.kafka.common.serialization.ExtendedDeserializer$Wrapper.deserialize(ExtendedDeserializer.java:65)
at org.apache.kafka.common.serialization.ExtendedDeserializer$Wrapper.deserialize(ExtendedDeserializer.java:55)
at org.apache.kafka.clients.consumer.internals.Fetcher.parseRecord(Fetcher.java:918)
at org.apache.kafka.clients.consumer.internals.Fetcher.access$2600(Fetcher.java:93)
at org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.fetchRecords(Fetcher.java:1095)
at org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.access$1200(Fetcher.java:944)
at org.apache.kafka.clients.consumer.internals.Fetcher.fetchRecords(Fetcher.java:567)
at org.apache.kafka.clients.consumer.internals.Fetcher.fetchedRecords(Fetcher.java:528)
at org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1086)
at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1043)
at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.run(KafkaMessageListenerContainer.java:628)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.lang.Thread.run(Thread.java:748)
"}
I am new in swift. i have this bytes:
Bytes: [11, 143, 102, 88, 132, 238, 0, 156, 100, 166, 72, 98, 226, 109, 51, 196, 124, 124, 207, 252, 204, 129, 233, 209, 112, 127, 66, 177, 37, 141, 169, 158, 122, 74, 215, 103, 13, 128, 74, 81, 221, 46, 219, 145, 107, 131, 90, 246, 37, 212, 91, 237, 32, 138, 74, 147, 238, 40, 182, 158, 12, 124, 197, 17, 92, 24, 184, 44, 150, 127, 147, 161, 175, 186, 227, 4, 248, 44, 21, 83, 0]
and i used this code:
let dencryptedBytes: [UInt8] = try! AES(key: UrlManager.CONNECTION_KEY, iv:UrlManager.CONNECTION_IV, blockMode: .CBC).encrypt(bytes)
and result like this:
Decoded Bytes: [157, 29, 111, 190, 188, 31, 233, 140, 152, 67, 196, 83, 214, 238, 232, 184, 101, 149, 45, 184, 155, 85, 184, 69, 155, 173, 196, 145, 123, 54, 238, 243, 34, 178, 190, 129, 106, 11, 26, 147, 19, 207, 204, 162, 142, 81, 6, 24, 21, 93, 80, 134, 247, 151, 83, 79, 214, 134, 80, 222, 10, 196, 64, 247, 53, 194, 195, 207, 230, 79, 215, 134, 87, 32, 37, 100, 82, 125, 59, 41, 235, 36, 144, 171, 64, 247, 195, 12, 115, 194, 124, 243, 109, 84, 44, 155]
but i need convert this bytes to string. i can not find answer. please advise me.
Thanks a lot !
Edit:
I found this:
var bytes: [UInt8] = [157, 29, 111, 190, 188, 31, 233, 140, 152, 67, 196, 83, 214, 238, 232, 184, 101, 149, 45, 184, 155, 85, 184, 69, 155, 173, 196, 145, 123, 54, 238, 243, 34, 178, 190, 129, 106, 11, 26, 147, 19, 207, 204, 162, 142, 81, 6, 24, 21, 93, 80, 134, 247, 151, 83, 79, 214, 134, 80, 222, 10, 196, 64, 247, 53, 194, 195, 207, 230, 79, 215, 134, 87, 32, 37, 100, 82, 125, 59, 41, 235, 36, 144, 171, 64, 247, 195, 12, 115, 194, 124, 243, 109, 84, 44, 155]
print(bytes2String(bytes))
func bytes2String(array:[UInt8]) -> String {
return NSString(data: NSData(bytes: array, length: array.count), encoding: NSUTF8StringEncoding)! as String
}
link: NSData to String in Swift Issues
but it don't work Why is it ?
Error: fatal error: unexpectedly found nil while unwrapping an Optional value
try this
(str=String(bytes: d, encoding: NSUTF8StringEncoding))
if the input data doesn't represent utf8 encoding string NSString constructor failed and return nil. if you unwrap nil value, the result is runtime error.
NSString(data: NSData(bytes: array, length: array.count), encoding: NSUTF8StringEncoding)!
it means exactly, that array bytes: [UInt8] is not representable as uft8 string. if i understand, you play with some crypto framework. are you sure that the framework does correct encryption, decryption? make some test first ...
In Java, you can flip a BitSet:
val javaBitSet = new java.util.BitSet(5)
javaBitSet.set(0)
javaBitSet.set(1)
javaBitSet.set(3)
javaBitSet.flip(0, 5)
javaBitSet: java.util.BitSet = {2, 4}
How do you idiomatically do this with Scala's BitSet?
(And why isn't this a method?)
scala> import collection.immutable.BitSet
import collection.immutable.BitSet
Your deleted example flips bit 2 but leaves bit 5 off:
scala> BitSet(1,2,3) &~ BitSet(2,5)
res3: scala.collection.immutable.BitSet = BitSet(1, 3)
but logical xor is what you want:
scala> BitSet(1,2,3) ^ BitSet(2,5)
res4: scala.collection.immutable.BitSet = BitSet(1, 3, 5)
or idiomatically
scala> implicit class `flipper of bits`(val bs: BitSet) extends AnyVal {
| def flip(lo: Int, hi: Int): BitSet = BitSet(lo until hi: _*) ^ bs
| }
defined class flipper$u0020of$u0020bits
scala> BitSet(2,5) flip (1,4)
res5: scala.collection.immutable.BitSet = BitSet(1, 3, 5)
for an "extension method." It's not efficient to build a BitSet from a range, since it invokes + n times. A bit better is to select a subrange of a bit set created from an array, as below. These hoops suggest it would be nice to have built-in support for ranged operations, as you requested.
Update:
For non-trivial ranges, better not to create BitSet from a Range.
scala> import collection.immutable.BitSet
import collection.immutable.BitSet
scala> val bs = BitSet(1, 69, 188)
bs: scala.collection.immutable.BitSet = BitSet(1, 69, 188)
scala> val lower = 32
lower: Int = 32
scala> val upper = 190
upper: Int = 190
scala> val n = (bs.last max upper) / 64 + 1
n: Int = 3
scala> val arr = Array.tabulate(n)(_ => -1L)
arr: Array[Long] = Array(-1, -1, -1)
scala> val mask = BitSet.fromBitMaskNoCopy(arr).range(lower, upper)
mask: scala.collection.immutable.BitSet = BitSet(32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189)
scala> val res = bs ^ mask
res: scala.collection.immutable.BitSet = BitSet(1, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 189)
scala> res(69)
res0: Boolean = false