C11111333133313232233133313331333133112111112113313223313133311   >>    C1111133313331323223313331333133313311211111211331322331313331   <<    C11111333133313232233133313331333133112111112113313223313133313   >>      C11111333133313232233133313331333133112111112113313223313133312   >>