C22212323232133313113313331333132313331323331123231323323231211111122111   >>    C2221232323213331311331333133313231333132333112323132332323121111112211   <<    C22212323232133313113313331333132313331323331123231323323231211111122113   >>      C22212323232133313113313331333132313331323331123231323323231211111122112   >>