C11112331333132311331333133313331333112211231211111211111322121323311   >>    C1111233133313231133133313331333133311221123121111121111132212132331   <<    C11112331333132311331333133313331333112211231211111211111322121323313   >>      C11112331333132311331333133313331333112211231211111211111322121323312   >>