220609

# a, b = input().split()
# a = int(a)
# b = int(b)
# print(a<b)
#
# a, b = input().split()
# a = int(a)
# b = int(b)
# # print(a==b)
#
# a, b = input().split()
# a = int(a)
# b = int(b)
# print(a<=b)
#
# a, b = input().split()
# a = int(a)
# b = int(b)
# print(a!=b)
#
# n = int(input())
# print(bool(n))
#
# a = bool(int(input()))
# print(not a)
#
# a, b = input().split()
# print(bool(int(a)) and bool(int(b)))
#
# a, b = input().split()
# print(bool(int(a)) or bool(int(b)))
# a, b = input().split()
# # c = bool(int(a))
# # d = bool(int(b))
# # print((c and (not d)) or ((not c) and d))
#
# a, b = input().split()
# c = bool(int(a))
# d = bool(int(b))
# print(((not c) and (not d)) or (c and d))

a, b = input().split()
c = bool(int(a))
d = bool(int(b))
print(((not c) and (not d)) and (not (c or d)))