C313212111133131211331333133313331211113313331333132233121233131   >>    C31321211113313121133133313331333121111331333133313223312123313   <<    C313212111133131211331333133313331211113313331333132233121233133   >>      C313212111133131211331333133313331211113313331333132233121233132   >>