XXX1X211XXX11X21
XXX1X211X2X1X221
22X1221XXXX11X21
22X1221XX2X1X221
22X1X211X2X11X21
22X1X211XXX1X221
XXX1221XX2X11X21
XXX1221XXXX1X221
2XX12211XXX1XX21
2XX12211X2X11221
X2X1X21XXXX1XX21
X2X1X21XX2X11221
2XX1X21XXXX11221
2XX1X21XX2X1XX21
X2X12211XXX11221
X2X12211X2X1XX21
