C313212111133131211331333133313331333112113121111331322332233121   >>    C31321211113313121133133313331333133311211312111133132233223312   <<    C313212111133131211331333133313331333112113121111331322332233123   >>      C313212111133131211331333133313331333112113121111331322332233122   >>