C11112331333132311331333133313331333112211231211111133132333221   >>    C1111233133313231133133313331333133311221123121111113313233322   <<    C11112331333132311331333133313331333112211231211111133132333223   >>      C11112331333132311331333133313331333112211231211111133132333222   >>