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 (Clang 3.8.0) (judge verdict: Accepted)

#include<stdio.h>
int main(){
    int a, b, c;
    scanf("%d %d %d", &a, &b ,&c);
    if((a == 5 || a == 7|| b == 5 || b == 7|| c == 5 || c == 7) && (a+b+c == 17\
)){
        printf("YES\n");
    }else{
        printf("NO\n");
    }
    return 0;
}