a = int(input("Введите число a: "))
b = int(input("Введите число b: "))

if a < b:
    min_num = a
    max_num = b
else:
    min_num = b
    max_num = a

for num in range(min_num, max_num + 1):
    print(num, end=" ")
print()

for num in range(max_num, min_num - 1, -1):
    print(num)