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# (Mono 4.6.2.0) (judge verdict: Wrong Answer)

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestApp2
{
    class Program
    {
        static void Main(string[] args)
        {

            var str = Console.ReadLine()
                .Split(' ')
                .Select(x => decimal.Parse(x))
                .ToArray();
            bool iso = false;
            if (str[0] == 5 || str[0] == 7)
                if (str[1] == 5 || str[1] == 7)
                    if (str[2] == 7 || str[2] == 7)
                        if (str[0] + str[1] + str[2] == 17)
                        {
                            Console.WriteLine("YES");
                            iso = true;
                        }
            if (!iso)
                Console.WriteLine("NO");
            Console.ReadLine();
        }


    }
}