C313212111133131211331333133313331333133311233133313232311232321   >>    C31321211113313121133133313331333133313331123313331323231123232   <<    C313212111133131211331333133313331333133311233133313232311232323   >>      C313212111133131211331333133313331333133311233133313232311232322   >>