C313212111133131211331333133313331333133313231333132322121111211   >>    C31321211113313121133133313331333133313331323133313232212111121   <<    C313212111133131211331333133313331333133313231333132322121111213   >>      C313212111133131211331333133313331333133313231333132322121111212   >>