#!/usr/bin/env python3
import sys, math, itertools, heapq, collections, bisect, fractions
input = lambda: sys.stdin.buffer.readline().rstrip().decode('utf-8')
sys.setrecursionlimit(10**8)
inf = float('inf')
ans = count = 0

# a,b,c=map(int,input().split())
# for i in itertools.permutations([a,b,c],3):
#     if i[0]==sum(i[1:]) or sum(i[:2])==i[2]:
#         print("Yes")
#         exit()

# print("No")