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

if (speed) < 50:
    print("no fine")
elif (speed) == 51:
    print("Just a caution")
elif (speed) == 52:
    print("Just a caution")
elif (speed) == 53:
    print("Just a caution")
elif (speed) == 54:
    print("Just a caution")
elif (speed) == 55:
    print("Just a caution")
elif (speed) == 56:
    print("$200 fine!")
elif (speed) == 57:
    print("$200 fine!")
elif (speed) == 58:
    print("$200 fine!")
elif (speed) == 59:
    print("$200 fine!")
elif (speed) == 60:
    print("$2000 fine!")
elif (speed) > 60:
    print("$1000 fine!")