C313212111133131211331333133313331333132212113313331323233313223321   >>    C31321211113313121133133313331333133313221211331333132323331322332   <<    C313212111133131211331333133313331333132212113313331323233313223323   >>      C313212111133131211331333133313331333132212113313331323233313223322   >>