C11111333133313232233133313331333133112111112113313121111131111212321   >>    C1111133313331323223313331333133313311211111211331312111113111121232   <<    C11111333133313232233133313331333133112111112113313121111131111212323   >>      C11111333133313232233133313331333133112111112113313121111131111212322   >>