Problem:
Score : 100 points

Problem Statement

Iroha loves Haiku. Haiku is a short form of Japanese poetry. A Haiku consists of three phrases with 5, 7 and 5 syllables, in this order.

To create a Haiku, Iroha has come up with three different phrases. These phrases have A, B and C syllables, respectively. Determine whether she can construct a Haiku by using each of the phrases once, in some order.

Constraints

1≦A,B,C≦10

Input

The input is given from Standard Input in the following format:

A B C

Output

If it is possible to construct a Haiku by using each of the phrases once, print YES (case-sensitive). Otherwise, print NO.

Sample Input 1

5 5 7

Sample Output 1

YES

Using three phrases of length 5, 5 and 7, it is possible to construct a Haiku.

Sample Input 2

7 7 5

Sample Output 2

NO

Solution in C (GCC 5.4.1) (judge verdict: Time Limit Exceeded)

#include<stdio.h>
#include<string.h>

int main(){
  int n,l;
  scanf("%d",&n);
  scanf("%d",&l);
  char str[n][l];
  char tmp[l];
  for(int i=0;i<n;i++){
    scanf("%s",&str[i][l]);
  }
  for(int j=1;j<n;j++){
    for(int k=1;k<n;j++){
      if(strcmp(str[k-1],str[k])>0){
        strcpy(tmp,str[k-1]);
        strcpy(str[k-1],str[k]);
        strcpy(str[k],tmp);
      }
    }
  }
  for(int m=0;m<n;m++){
    printf("%s",str[m]);
  }
  return 0;
}