C11111333133313232233133313331333133112111112113313221121132311   >>    C1111133313331323223313331333133313311211111211331322112113231   <<    C11111333133313232233133313331333133112111112113313221121132313   >>      C11111333133313232233133313331333133112111112113313221121132312   >>