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              Johan Oosthuizen
            
            
              University of Pretoria
            
          
              17527
              $1
              
        
                All Problem Solvers
                  (All Time)
              
            
          Updated Nov 04, 2025
        
        
      
              Simphiwe Shongwe
            
            
              University of South Africa
            
          
              17527
              $1
              
        
                All Problem Solvers
                  (All Time)
              
            
          Updated Nov 04, 2025