C22212323232133313113313331333133313231323133313332233122321123121311   >>    C2221232323213331311331333133313331323132313331333223312232112312131   <<    C22212323232133313113313331333133313231323133313332233122321123121313   >>      C22212323232133313113313331333133313231323133313332233122321123121312   >>