C22212323232133313113313331333132313331323331123231323323232132223221   >>    C2221232323213331311331333133313231333132333112323132332323213222322   <<    C22212323232133313113313331333132313331323331123231323323232132223223   >>      C22212323232133313113313331333132313331323331123231323323232132223222   >>