21121X122X11221M
21121X122211221M
21121212XX11221M
21121212X211221M
21X2X2122X11221M
21X2X2122211221M
21X22X12XX11221M
21X22X12X211221M
2122XX12XX11221M
2122XX12X211221M
212222122X11221M
212222122211221M
