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>
#include <string.h>

int main(void)
{
    int n, l, i, j, k, m;
    char s[100][100], tmp[100], ans[20000];
    scanf("%d %d", &n, &l);
    for (i = 0; i < n; i++)
    {
        scanf("%s", s[i]);
    }

    for (k = n - 1; k > 0; k--)
    {
        for (j = 0; j < k; j++)
        {
            for (i = 0; i < l; i++)
            {
                if (s[j][i] < s[j + 1][i]) {
                    break;
                }
                else if (s[j][i] > s[j + 1][i]) {
                    for (m = 0; m < l; m++)
                    {
                        tmp[m] = s[j + 1][m];
                        s[j + 1][m] = s[j][m];
                        s[j][m] = tmp[m];
                    }
                    break;
                }
            }
        }
    }

    for (i = 0; i < n; i++)
    {
        strcat(ans, s[i]);
    }
    printf("%s\n", ans);
    return 0;
}