関連ワード:  last 3 characters of a string python    last 3 letters of a string python    get last 3 characters of a string python    remove last 3 characters of a string python    how to get last 3 letters of a string python    print last 3 characters string python    check last 3 characters string python    print last 3 letters of string python    first 3 characters of a string python    replace last 3 characters in string python