#include<iostream>
using namespace std;

int memo[5][4011];

int solve(int p, int n){

 
  if(!p&& !n) return 1;
  if(!p || n <= 0) return 0;
  if(memo[p][n] > 0) return memo[p][n];
  
  int res = 0;
  for(int i=0;i<=n;i++) res += solve(p-1, n-i);
  
  return memo[p][n] = res;
}

int main(){

  int n;
  
  while(cin >> n) cout << solve(4, n+1) << endl;
  
}