C11111333133313232233133313331333133112111112113313331312312323131   >>    C1111133313331323223313331333133313311211111211331333131231232313   <<    C11111333133313232233133313331333133112111112113313331312312323133   >>      C11111333133313232233133313331333133112111112113313331312312323132   >>