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


