C11111333133313232233133313331333133112111112113313113121111121111331323233111   >>    C1111133313331323223313331333133313311211111211331311312111112111133132323311   <<    C11111333133313232233133313331333133112111112113313113121111121111331323233113   >>      C11111333133313232233133313331333133112111112113313113121111121111331323233112   >>