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          First Trust Combined Series 345
          
            120 East Liberty Drive
            Suite 400
            Wheaton
            IL
            X1
            60187
          
        
        
          
            
              First Trust Combined Series 345
            
          
        
        
          811-2541
          
            
              333-170983
            
          
        
        
          04/30/2022
          true
        
        
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          Elizabeth H. Bull
          Elizabeth H. Bull, Senior Vice President
          05/20/2022