21X11211X1221120
21X1121XXX221220
21X12221XX221220
21X1222XX1221120
21X21221XX221120
21X2122XX1221220
21X22211X1221220
21X2221XXX221120
21211221X1221220
2121122XXX221120
21212211XX221120
2121221XX1221220
21221211XX221220
2122121XX1221120
21222221X1221120
2122222XXX221220
