C313212111133131211331333133313331331121111331333133313331333132322331313211   >>    C31321211113313121133133313331333133112111133133313331333133313232233131321   <<    C313212111133131211331333133313331331121111331333133313331333132322331313213   >>      C313212111133131211331333133313331331121111331333133313331333132322331313212   >>