C132233133112121111331333133313231333133313231212121111331123231211   >>    C13223313311212111133133313331323133313331323121212111133112323121   <<    C132233133112121111331333133313231333133313231212121111331123231213   >>      C132233133112121111331333133313231333133313231212121111331123231212   >>