A = int(input()) b = int(input()) c = int(input()) d = int(input()) x= 0
if a > b and a > c and a > d:
x = a
elif b > a and b > c and b > d:
× = b
elif c > a and c > b and c > d:
x= c
elif d > a and d > c and d > b:
x = d
print(x)
ввели 1 2 3 4
какое число выведем?
