allowed_types = ["F", "C", "K"]
temp_type = input("Which type of temperature (F, C, or K): ").upper()
if temp_type not in allowed_types:
    print("Invalid code.")
else:
    temp = int(input("Enter temperature: "))
    if temp < -500 or temp > 500:
        print("INVALID value for temperature – setting temperature value to 100")
        temp = 100

    if temp_type == "F":
        F = temp
        C = (F - 32) * 5/9
        K = (F + 459.67) * 5/9
    elif temp_type == "C":
        C = temp
        F = C * 9/5 + 32
        K = (9/5 * C + 491.67) * 5/9
    else:
        K = temp
        F = 9/5 * K - 459.67
        C = (9/5 * K - 491.67) * 5/9

    print("Temperature in degrees Fahrenheit:", F)
    print("Temperature in degrees Celsius:", C)
    print("Temperature in degrees Kelvin:", K)