C11111333133313232233133313331333133313231313131211113313331333132233132233121   >>    C1111133313331323223313331333133313331323131313121111331333133313223313223312   <<    C11111333133313232233133313331333133313231313131211113313331333132233132233123   >>      C11111333133313232233133313331333133313231313131211113313331333132233132233122   >>