C111123313331323113313331333133313331122112312111133133313232333131   >>    C11112331333132311331333133313331333112211231211113313331323233313   <<    C111123313331323113313331333133313331122112312111133133313232333133   >>      C111123313331323113313331333133313331122112312111133133313232333132   >>