11X12111X1111121
11X1211X21112121
XXXX21X1X1111121
XXXX21XX21112121
XXX1211XX1111121
XXX1211121112121
11XX21XXX1111121
11XX21X121112121
X1XX211121111121
X1XX211XX1112121
1XX121X121111121
1XX121XXX1112121
X1X121X1X1112121
X1X121XX21111121
1XXX2111X1112121
1XXX211X21111121
X122111111XXXX12
X2211111X1XXXX12
