#! /usr/bin/env python3
# -*- coding: utf-8 -*-
spalten = [None for col in "12345678"]
zeilen = [spalten.copy() for row in "ABCDEFGH"]


zeilen[0][0] = 'Turm'
zeilen[0][-1] = 'Turm'
zeilen[-1][0] = 'turm'
zeilen[-1][-1] = 'turm'


for z in zeilen:
    for zelle in z:
        print(zelle, end='  ')
    else:
        print()