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 Python (3.8.2) (judge verdict: Wrong Answer)

def haiku(a,b,c):
    if a==5 or a==7:
        if b==5 or b==7:
            if c==5 or c==7:
                if a+b+c==17:
                    return 'YES'
                else:
                    return'NO'
            else:
                return'NO'
        else:
            return'NO'  
    else:
        return'NO'
                
                
num=input('input numbers: ')
num=num.split()
a=int(num[0])
b=int(num[1])
c=int(num[2])
print(haiku(a,b,c))