C11111333133313232233133313331333133112111112113313332313232333131   >>    C1111133313331323223313331333133313311211111211331333231323233313   <<    C11111333133313232233133313331333133112111112113313332313232333133   >>      C11111333133313232233133313331333133112111112113313332313232333132   >>