DDDDDDdd00000000000
……………………
00000
0000
DDDDDDDDDDDD
00000000000000
DDDDDDDDDDD
00000000000000000
DDDDDDDDDDDDDDD
DDDDDDDDDDDD
000000000000000000
DDDDDDDDDDDDD
…………………
DDDDDDDDDDD
DDDDDDDDDDDDDD
DDDDDDDDDD
DDDDDDDDDD
DDDDDDDDDDDD
DDDDDDDDDDD
00000000000