C11112331333132311331333133313331333112211231211111133131133121123231   >>    C1111233133313231133133313331333133311221123121111113313113312112323   <<    C11112331333132311331333133313331333112211231211111133131133121123233   >>      C11112331333132311331333133313331333112211231211111133131133121123232   >>