C11111333133313232233133313331333133313331312111133133112111112111111331321   >>    C1111133313331323223313331333133313331333131211113313311211111211111133132   <<    C11111333133313232233133313331333133313331312111133133112111112111111331323   >>      C11111333133313232233133313331333133313331312111133133112111112111111331322   >>