a = int(input())
b = int(input())
if a > b:
print(a)
elif a < b:
if b > 0:
print(b)
elif b < 0:
print(0)
ответ:a = int(input())
a = int(input())
b = int(input())
if a > b:
print(a)
elif a < b:
if b > 0:
print(b)
elif b < 0:
print(0)
ответ:a = int(input())
b = int(input())
if a > b:
print(a)
elif a < b:
if b > 0:
print(b)
elif b < 0:
print(0)