11111111X111X121
11111XX1X1X12121
11111XX12111XX21
11X11111X1X1XX21
11X1111121112121
11X11XX121X12X21
111XX1112XX12X21
111XX1X1XX112X21
111XXX112XX1X121
11XXX1X12XX1X121
11XXXX11XX112X21
11XXXXX1XX11X121
111221X122X1X121
11122X11X2112X21
11122XX1X2X1XX21
11122XX122112121
11X22111X2X12121
11X221112211XX21
11X221X1X2112X21
11X22X1122X1X121
21122111XXX2X121
