.o..............o.
o1o............o1o
o12o..........o12o
o112o........o123o
o112o........o123o
o1132o......o1233o
o1132o......o1233o
o11332o....o12333o
o113322o..o123332o
o113322o..o123332o
o112222o..o122222o
o122222o..o122222o
o222222o..o222222o
.222222..P.222222.