C313212111133131211331333133313331333133311233133313233221312311   >>    C31321211113313121133133313331333133313331123313331323322131231   <<    C313212111133131211331333133313331333133311233133313233221312313   >>      C313212111133131211331333133313331333133311233133313233221312312   >>