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++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <iostream>
#include <cstdlib>
using namespace std;

int compare_int(const void *a, const void *b){
    return *(int*)a - *(int*)b;
}

int main(){
    int a[3];
    for(int i=0;i<3;i++){
        cin >> a[i];
    }
    qsort(a,3,sizeof(int),compare_int);
    if(a[0]==5&&a[1]==5&&a[2]==7){
        cout << "YES" << endl;
        return 0;
    }
    cout << "NO" << endl;
    return 0;
}