/ /--/ ------------------------------ -+----\ | 29 28 27 25 24 22 / | | | \ 20 26 23 / |21 | | \ | | | 4 | | | | 19 18 17 16 15 14 13 | | 3 | --------------------------------- | | | 30 31 32 33 34 35 36 | | 2 | | | | | | 1 | 5 6 7 8 +-+ 9 10 11 12 | \-----+-------------------/ \-----------------/