C22212323232133313113313331333132313331323331123231323323231112323123221   >>    C2221232323213331311331333133313231333132333112323132332323111232312322   <<    C22212323232133313113313331333132313331323331123231323323231112323123223   >>      C22212323232133313113313331333132313331323331123231323323231112323123222   >>