C11111333133313232233133313331333133313331311331333133313231333131133221   >>    C1111133313331323223313331333133313331333131133133313331323133313113322   <<    C11111333133313232233133313331333133313331311331333133313231333131133223   >>      C11111333133313232233133313331333133313331311331333133313231333131133222   >>