document.write('
Data hosted with ♥ by Pastebin.com - Download Raw - See Original
  1. #include<iostream>
  2. #include <math.h>
  3. using namespace std;
  4.  
  5.  
  6. int main()
  7. {
  8. int d;
  9. while(cin>>d)
  10. {
  11. int sumsum=1;
  12. int sum=1;
  13. int adder=1;
  14. for(int num=2;num<=50;num++)
  15. {
  16. sum = sum+adder;
  17. adder=adder+d;
  18. //cout<<sum<<" ";
  19. sumsum+=sum;
  20. }
  21. //cout<<endl;
  22. cout<<sumsum<<endl;
  23. }
  24. }
');