معادله خط

Main.py

inp = input()

nums = [int(i) for i in inp.split(" ")]

# 0 0
# - 0
# 0 -
# - -

if nums[0] == 0 and nums[1] == 0:
    print("infinite")

elif nums[1] == 0:
    if nums[0] == 0:
        print("infinite")
    else:
        print("unique")

elif nums[0] == 0:
    if nums[1] == 0:
        print("infinite")
    else:
        print("invalid")

else:
    print("unique")