C132233133112121111331333133313231333133313231212121111331312312111   >>    C13223313311212111133133313331323133313331323121212111133131231211   <<    C132233133112121111331333133313231333133313231212121111331312312113   >>      C132233133112121111331333133313231333133313231212121111331312312112   >>