text: #include "bits/stdc++.h" 
  using namespace std; 
  #define max(a, b) (a < b ? b : a) 
  #define min(a, b) ((a > b) ? b : a) 
  #define mod 1e9 + 7 
  #define FOR(a, c) for (int(a) = 0; (a) < (c); (a)++) 
  #define FORL(a, b, c) for (int(a) = (b); (a) <= (c); (a)++) 
  #define FORR(a, b, c) for (int(a) = (b); (a) >= (c); (a)--) 
  #define INF 1000000000000000003 
  typedef long long int ll; 
  typedef vector<int> vi; 
  typedef pair<int, int> pi; 
  #define F first 
  #define S second 
  #define PB push_back 
  #define POB pop_back 
  #define MP make_pair 
  int main() {
  	ll s1 = 0;
  	FOR(i , 101){
  		s1+=(i*i);
  	}
  	cout<<5050*5050-s1;
  	return 0;
  }