C111123313331323113313331333133313331122112312111133131333112331   >>    C11112331333132311331333133313331333112211231211113313133311233   <<    C111123313331323113313331333133313331122112312111133131333112333   >>      C111123313331323113313331333133313331122112312111133131333112332   >>