C313212111133131211331333133313331333133313231333133313331333133313232233111211   >>    C31321211113313121133133313331333133313331323133313331333133313331323223311121   <<    C313212111133131211331333133313331333133313231333133313331333133313232233111213   >>      C313212111133131211331333133313331333133313231333133313331333133313232233111212   >>