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: Wrong Answer)

#include<stdio.h>
int a[10] = {0};
int main()
{
    int b,c,d;
    scanf("%d%d%d",&b,&c,&d);
    a[b]++;
    a[c]++;
    a[d]++;
    if(a[5] == 2 && a[7]==1){
        printf("YES\nUsing three phrases of length %d, %d and %d, it is possible to construct a Haiku.",b,c,d);
    }
    else{
        printf("NO");
    }
    return 0;

}