2X2XXX122X11XXMM
212XXX12X211XX2M
2121X2122X11X2MM
21X1221X2211X2M2
21211X12XX11XXM2
2XX1XX122X11X222
212X2X12X211X222
21X222122X11X2MM
21X2121XXX11X2M2
2121XX122211X22M
21222212XX111X22
212X12122211X2M2
212X22122211122M
21XXX21222111XMM
21X2221X22111X2M
21221X12X2111X22
