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

if spd < 51:
    print( "no fine ")
elif spd > 50:
    if spd < 56:
        print( "just a caution")
    elif spd >55:
        if spd < 61:
            print( "fine is $200")
        elif spd > 60:
            print( "fine is $1000")