C111123313331323113313331333133313331122112312111133132321113131   >>    C11112331333132311331333133313331333112211231211113313232111313   <<    C111123313331323113313331333133313331122112312111133132321113133   >>      C111123313331323113313331333133313331122112312111133132321113132   >>