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 Rust (1.15.1) (judge verdict: Accepted)

use std::io;

fn main() {
    let mut input = String::new();
    io::stdin().read_line(&mut input).unwrap();
    let (count5, count7, countx) = input.split_whitespace().fold((0, 0, 0), |(c5, c7, cx), token| {
        let len: i32 = token.parse().unwrap();
        if len == 5 {
            (c5 + 1, c7, cx)
        } else if len == 7 {
            (c5, c7 + 1, cx)
        } else {
            (c5, c7, cx + 1)
        }
    });
    if count5 == 2 && count7 == 1 && countx == 0 {
        println!("YES")
    } else {
        println!("NO")
    }
}