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  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.  
  6. int a,b,c;
  7. scanf("%d",&a);
  8. scanf("%d",&b);
  9. scanf("%d",&c);
  10.  
  11. if((a<b)&&(b<c))
  12. printf("YES\n");
  13. else
  14. printf("NO\n");
  15.  
  16. return 0;
  17. }
  18.  
Success #stdin #stdout 0s 5296KB
stdin
1 2 3
stdout
YES