You are given three integers A, B and C.  Determine if there exists an equilateral triangle whose sides have lengths A, B and C.
import sys

A, B, C = input().split()
a = int(A)
b = int(B)
c = int(C)

if a == b:
    if a == c:
        print('YES')
        sys.exit()
        
print('NO')

import sys

A, B, C = input().split()
a = int(A)
b = int(B)
c = int(C)

if a == b:
    if a == c:
        print('Yes')
        sys.exit()

print('No')
