C11111333133313232233133313331333133112111112113313331321123231332311   >>    C1111133313331323223313331333133313311211111211331333132112323133231   <<    C11111333133313232233133313331333133112111112113313331321123231332313   >>      C11111333133313232233133313331333133112111112113313331321123231332312   >>