Which happened first, buying Sukhoi Su-30SM or 100th Shipborne Fighter Aviation Regiment's disbandment?
return buying Sukhoi Su-30SM ;return 100th Shipborne Fighter Aviation Regiment 's disbandment ;return when  was  #1 ;return when  was  #2 ;return which is lowest of #3 ,  #4
['select', 'select', 'project', 'project', 'comparison']