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;

namespace ABC042_A_Iroha_and_Haiku
{
	internal class Program
	{
		public static void Main(string[] args)
		{
			string[] input = Console.ReadLine().Split(' ');
			List<int> abc = new List<int>();
			
			abc.Add(int.Parse(input[0]));
			abc.Add(int.Parse(input[1]));
			abc.Add(int.Parse(input[2]));

			if (abc[0] == 5)
			{
				if (abc[1] == 5)
				{
					if (abc[2] == 7)
					{
						Console.WriteLine("Yes");
						return;
					}
				}else if (abc[1] == 7)
				{
					if (abc[2] == 5)
					{
						Console.WriteLine("Yes");
						return;
					}
				}
			}else if (abc[0] == 7)
			{
				if (abc[1] == 5 && abc[2] == 5)
				{
					Console.WriteLine("Yes");
					return;
				}
			}
			
			Console.WriteLine("No");
		}
	}
}