C313212111133131211331333133313331333133311233133313332321333131323311   >>    C31321211113313121133133313331333133313331123313331333232133313132331   <<    C313212111133131211331333133313331333133311233133313332321333131323313   >>      C313212111133131211331333133313331333133311233133313332321333131323312   >>