speed = int(input("Enter vehicle speed: "))

if speed == 50 or speed < 50:
    print("No fine")

if speed > 51 and speed < 55 or speed == 51 or speed == 55:
    print("Just a caution")

if speed > 56 and speed < 60 or speed == 56 or speed == 60:
    print("$200 fine")

if speed > 60:
    print("$1000 fine")