X11211X1XXX2X210
X1122XX1XX1X1210
X1122X2X1XX2X210
XX121X2X1X1X1210
XX12212X1X1X1210
XX122XX1XXX2X210
2112112X1X1X1210
21121XX1XXX2X210
211221X1XXX2X210
2X1211XX1X1X1210
2X121121XXX2X210
2X122X2X1X1X1210
