How many was the combined Su-25 strike aircraft and Tu-22M3 long-range bomber were lost?
return Su-25 strike aircraft ;return Tu-22M3 long-range bombers ;return #1 that were lost ;return #2 that were lost ;return number of  #3 ;return number of  #4 ;return the  sum of #5 and  #6
['select', 'select', 'filter', 'filter', 'aggregate', 'aggregate', 'arithmetic']