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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. class Ideone
  6. {
  7. 	public static void main (String[] args) throws java.lang.Exception
  8. 	{
  9. 		String strings[] = {"Aisha256", "ai_sha256", "test123", "84test", "test md5", "sha256", "word two sha1", "w0rd", "test_md5", "sha256", "md5"};
  10. 		for (String str : strings){
  11. 			System.out.println(str.replaceAll("(?<!\\d|^)(?<!(?<![^\\W_])(?:sha|md))(?=\\d)|(?<=\\d)(?!\\d|$)|_", " "));
  12. 		}
  13. 	}
  14. }
Success #stdin #stdout 0.09s 34120KB
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stdin
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Standard input is empty
stdout
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Aisha 256
ai sha256
test 123
84 test
test md5
sha256
word two sha1
w 0 rd
test md5
sha256
md5
https://ideone.com/tBPKo6
language:
Java (HotSpot 12)
created:
3 years ago
visibility:
secret

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