C11111333133313232233133313331333133112111112113313221333112111   >>    C1111133313331323223313331333133313311211111211331322133311211   <<    C11111333133313232233133313331333133112111112113313221333112113   >>      C11111333133313232233133313331333133112111112113313221333112112   >>