C22212323232133313113313331333132313331323231323323233122123131   >>    C2221232323213331311331333133313231333132323132332323312212313   <<    C22212323232133313113313331333132313331323231323323233122123133   >>      C22212323232133313113313331333132313331323231323323233122123132   >>