Problem:
Score : 100 points

Problem Statement

You are given three integers A, B and C.

Determine if there exists an equilateral triangle whose sides have lengths A, B and C.

Constraints

All values in input are integers.

1 \leq A,B,C \leq 100

Input

Input is given from Standard Input in the following format:

A B C

Output

If there exists an equilateral triangle whose sides have lengths A, B and C, print Yes; otherwise, print No.

Sample Input 1

2 2 2

Sample Output 1

Yes

There exists an equilateral triangle whose sides have lengths 2, 2 and 2.

Sample Input 2

3 4 5

Sample Output 2

No

There is no equilateral triangle whose sides have lengths 3, 4 and 5.

Solution in Python (3.4.3) (judge verdict: Accepted)

import sys

a,b,c = map(int,input().split())

val = [a,b,c]

for i in val:
    if 1 >= i and i <= 100:
        print('No')
        sys.exit()

if val[0] == val[1] and val[1] == val[2]:
    print('Yes')
else:
    print('No')