C313212111133131211331333133313331333133313331333133313331333132313112121211   >>    C31321211113313121133133313331333133313331333133313331333133313231311212121   <<    C313212111133131211331333133313331333133313331333133313331333132313112121213   >>      C313212111133131211331333133313331333133313331333133313331333132313112121212   >>