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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. public static void main (String[] args) throws java.lang.Exception
  11. {
  12. String str = "1357";
  13. int L = str.length();
  14. int N = 3;
  15. int pow = 1;
  16. for (int i = 0; i < N; i++)
  17. pow *= L; // L^N
  18. for (int i = 0; i < pow; i++)
  19. {
  20. int tmp = i;
  21. String res = "";
  22. for (int k = 0; k < N; k++)
  23. {
  24. res = str.charAt(tmp % L) + res; //integer modulo
  25. tmp = tmp / L;
  26. }
  27. System.out.println(res);
  28. }
  29. }
  30. }
Success #stdin #stdout 0.11s 36044KB
stdin
Standard input is empty
stdout
111
113
115
117
131
133
135
137
151
153
155
157
171
173
175
177
311
313
315
317
331
333
335
337
351
353
355
357
371
373
375
377
511
513
515
517
531
533
535
537
551
553
555
557
571
573
575
577
711
713
715
717
731
733
735
737
751
753
755
757
771
773
775
777