def hovedprogram():
    print("Hei")
    a = 3
    b = 2.3
    c = "Hei"
    c2 = 'h'
    d = [1, 2, 3]
    f = {"a":3, "b":4}

    for i in range(10):
        print(i)

    for tall in d:
        print(tall)

    inp = input("Skriv et tall\n> ")
    heltall = int(inp)
    flyttall = float(inp)

hovedprogram()