C313212111133131211331333133313331333133311233133313233313232233133321223321   >>    C31321211113313121133133313331333133313331123313331323331323223313332122332   <<    C313212111133131211331333133313331333133311233133313233313232233133321223323   >>      C313212111133131211331333133313331333133311233133313233313232233133321223322   >>