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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. 	// your code goes here
  5.     int a,b;
  6.     scanf("%d",&a);
  7.     for(b=2;b<=a-1;b++)  if(a%b==0) break;
  8.     {
  9.      if(a>b)  printf("yes");
  10.      else  printf("na");
  11.     }
  12. 	return 0;
  13. }
  14.  
Success #stdin #stdout 0s 5316KB
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stdin
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6
stdout
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yes
https://ideone.com/DLy0b6
language:
C (gcc 8.3)
created:
3 hours ago
visibility:
public

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