1111X2X211121220
XX1XX1X22X121220
1XX112X21XX1X220
11X1X11211111220
X111111211111220
X11X12121XX21220
X2X112221X11X220
1XXXX11221X1X220
1XXX12X221121220
121XX1221XX11220
X1X1X1X21X12X220
X21X12X221X1X220
X1X1121221X11220
X2XX112211X2X220
1111X2122XX2X220
XX11X2X211X11220
12X111222XX21220
1X1X11X22X11X220
12XXX2121112X220
X111X1222112X220
