C313212111133131211331333133313331333133313133313331323221131211   >>    C31321211113313121133133313331333133313331313331333132322113121   <<    C313212111133131211331333133313331333133313133313331323221131213   >>      C313212111133131211331333133313331333133313133313331323221131212   >>