C132233133112121111331333133313331333132322331333133313333232212131   >>    C13223313311212111133133313331333133313232233133313331333323221213   <<    C132233133112121111331333133313331333132322331333133313333232212133   >>      C132233133112121111331333133313331333132322331333133313333232212132   >>