northsouthwalls 4 1 2
northsouthwalls 5 3 4
northsouthwalls 6 5 6
northsouthwalls 7 7 8
northsouthwalls 8 1 8
eastwestwalls 2 5 5
eastwestwalls 4 6 6
eastwestwalls 6 7 7
eastwestwalls 8 8 8
beepers 9 8 1


