C22212323232133313113313331333132313331311211323323222331233311   >>    C2221232323213331311331333133313231333131121132332322233123331   <<    C22212323232133313113313331333132313331311211323323222331233313   >>      C22212323232133313113313331333132313331311211323323222331233312   >>