C11111333133313232233133313331333133313331313331333133313331333133313113131211   >>    C1111133313331323223313331333133313331333131333133313331333133313331311313121   <<    C11111333133313232233133313331333133313331313331333133313331333133313113131213   >>      C11111333133313232233133313331333133313331313331333133313331333133313113131212   >>