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: Accepted)

#include <stdio.h>

int main(void){
	int A, B, C;
	scanf("%d %d %d", &A, &B, &C);
	int number[3] = {A, B, C};
	int answer[3] = {5, 5, 7};
	
	int i, j, tmp;
	
	for (i=0; i<3; i++){
		for (j=i+1; j<3; j++){
			if (number[i] > number[j]){
				tmp = number[i];
				number[i] = number[j];
				number[j] = tmp;
			}
		}
	}

	if (number[0] == 5 && number[1] == 5 && number[2] == 7){
		printf("YES\n");
	}else{
		printf("NO\n");
	}
	
	return 0;
}