C11112331333132311331333133313331333112211231211113313331322312331   >>    C1111233133313231133133313331333133311221123121111331333132231233   <<    C11112331333132311331333133313331333112211231211113313331322312333   >>      C11112331333132311331333133313331333112211231211113313331322312332   >>