C11111333133313232233133313331333133112111112113313133112112113231   >>    C1111133313331323223313331333133313311211111211331313311211211323   <<    C11111333133313232233133313331333133112111112113313133112112113233   >>      C11111333133313232233133313331333133112111112113313133112112113232   >>