d28x16
0000007000007000000000003000
3111111111111111113000003000
3000000000000070003444443007
1111111113111111111000003111
1111111133000000000000003000
1111111334444444300000003000
1707113300000080300700803007
1111133000003111122211113111
0000030000003000000000003000
0000030000003000000000003000
0000830007003444444444443007
3111111111113007000007003111
3000000000003011111111103000
3000000000003000000000003000
3000000700003000090700003000
1111111111111111111111111111