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  1.  
  2. #include <iostream>
  3. using namespace std;
  4. int main (){
  5. long long a;
  6. long long b ;
  7. long long c;
  8. long long d;
  9. cin>>a>>b>>c>>d;
  10. cout<<"Difference = "<<(a*b)-(c*d) <<endl;
  11. return 0;
  12.  
  13. }
Success #stdin #stdout 0.01s 5432KB
stdin
Standard input is empty
stdout
Difference = 6216969339176033792