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::str::FromStr;

fn main() {
    let xs = read_vec_i32();

    if solve(xs) {
        println!("YES");
    } else {
        println!("NO");
    }
}

fn solve(xs : Vec<i32>) -> bool {
    let mut ys = xs;
    ys.sort();
    if ys == [5, 5, 7] {
        return true;
    } else {
        return false;
    }
}

fn read_vec_i32() -> Vec<i32> {
    let mut line = String::new();
    std::io::stdin().read_line(&mut line).unwrap();
    line.trim().split(' ').map(|s| i32::from_str(s).unwrap()).collect()
}