1X111X2X12X1XX22
1XX1XXXX1111XX22
1221XX2X1111XX22
X2111XXX1211XX22
XXX1XX2X1211XX22
X2X11XXX11X1XX22
XX21XX2X11X1XX22
2211XXXX12X1XX22
22X11X2X12X1XX22
2X211XXX12X1XX22
2X211X2X1111XX22
