C22212323232133313113313331333132313331323132213231312112121221111   >>    C2221232323213331311331333133313231333132313221323131211212122111   <<    C22212323232133313113313331333132313331323132213231312112121221113   >>      C22212323232133313113313331333132313331323132213231312112121221112   >>