211X1XX11122X222
212X1111X121X222
222X1X112121X222
221XX1X11121X222
212XXXX1X121X222
221XX111X122X222
212XXX112122X222
222X21X11122X222
221X2XX1X122X222
211X21X12122X222
211X2X112121X222
