C313212111133131211331333133313331333133311233133313232133322121   >>    C31321211113313121133133313331333133313331123313331323213332212   <<    C313212111133131211331333133313331333133311233133313232133322123   >>      C313212111133131211331333133313331333133311233133313232133322122   >>