def move_list_elemts():
    list1 = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
    list2 = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j"]
    counter = 0
    while counter < 7:
        list1.append(list1.pop(0))
        counter = counter + 1

    print(list1)


def list_remove_duplicates():
    word = "Donaudampfschiffahrtsgesellschaftsstewardess"
    word_list = list(word)
    print(len(word_list))

    result_list = []

    for letter in word:
        if letter not in result_list:
            result_list.append(letter)

    print(result_list)
    print(len(result_list))


def sort_list():
    list1 = [[1, 2, 3], [2, 1, 3], [4, 0, 1]]
    list1.sort(key=lambda x: x[1])
    print(list1)


def fake_switch():
    tier_name = 'Hund'
    tier_sound = {'Hund': 'wuff', 'Katze': "miau"}
    print(tier_sound[tier_name])


def main():
    print("Aufgabe 3:")
    move_list_elemts()
    print("Aufgabe 4:")
    list_remove_duplicates()
    print("Aufgabe 5:")
    sort_list()
    print("Aufgabe 6:")
    fake_switch()


if __name__ == '__main__':
    main()