C11111333133313232233133313331333133112111112113313331313113121231   >>    C1111133313331323223313331333133313311211111211331333131311312123   <<    C11111333133313232233133313331333133112111112113313331313113121233   >>      C11111333133313232233133313331333133112111112113313331313113121232   >>