C111123313331323113313331333133313331122112312111133133313112113133231   >>    C11112331333132311331333133313331333112211231211113313331311211313323   <<    C111123313331323113313331333133313331122112312111133133313112113133233   >>      C111123313331323113313331333133313331122112312111133133313112113133232   >>