C22212323232133313113313331333132313331323331123231323323231122211331   >>    C2221232323213331311331333133313231333132333112323132332323112221133   <<    C22212323232133313113313331333132313331323331123231323323231122211333   >>      C22212323232133313113313331333132313331323331123231323323231122211332   >>