def test_input(i):
    if i == "s":
        return True
    elif i == "r":
        return True
    elif i == "c":
        return True
    elif i == "q":
        return True
    elif i > 0:
        return True

    else:
        return False


def nelioa(s1, s2):
    return s1 * s2


def nelios(s1, s2):
    return 2 * s1 + 2 * s2


def nelios2(s):
    return s*4


def nelioa2(s):
    return s * s


def ympyra(r):
    import math
    return r * math.pi * 2


def ympyra_a(r):
    import math
    return math.pi * r * r


def main():
    i=0
    while str(i) != "q":
        i = str(
            input("Enter the pattern's first letter, q stops this (s/r/q): "))
        while test_input(i) is False:
            print("Incorrect entry, try again!")
            i = input(
                "Enter the pattern's first letter, q stops this (s/r/q): ")

        if i == str("s"):
            sivu1 = float(
                input("Enter the length of the rectangle's side 1: "))
            while test_input(sivu1) is False:
                sivu1 = float(
                    input("Enter the length of the rectangle's side 1: "))
            sivu2 = float(
                input("Enter the length of the rectangle's side 2: "))
            while test_input(sivu2) is False:
                sivu2 = float(
                    input("Enter the length of the rectangle's side 2: "))
            print("The total circumference is " + str(nelios(sivu1, sivu2)))

            print("The surface area is " + str(nelioa(sivu1, sivu2)))
        if i == "r":
            sqr = float(input("Enter the length of the square's side: "))
            while test_input(sqr) is False:
                sqr = float(input("Enter the length of the square's side: "))
            print("The total circumference is " + str(nelios2(sqr)))
            print("The surface area is " + str(nelioa2(sqr)))
        if i == "c":
            radi = float(input("Enter the circle's radius: "))
            while test_input(radi) is False:
                radi = float(input("Enter the circle's radius: "))
            print("The total circumference is " + str(ympyra(radi)))
            print("The surface area is " + str(ympyra_a(radi)))


main()