C1111233133313231133133313331333133311221123121111331311331323131111331   >>    C111123313331323113313331333133313331122112312111133131133132313111133   <<    C1111233133313231133133313331333133311221123121111331311331323131111333   >>      C1111233133313231133133313331333133311221123121111331311331323131111332   >>