wwwwwwwwwwwwwwww
w0_____A...._w1w
w...........___w
w..............w
w..............w
w___........3_.w
w___.......2___w
w___.......wwwww
w0__...........w
w0__........___w
w1__.........__w
w......1....._3w
w............__w
w.....w_w....__w
w.....wgw...._3w
wwwwwwwwwwwwwwww
