#include <bits/stdc++.h>
using namespace std;
void solve() {
  int t;
  cin >> t;
  string tsr;
  cin >> tsr;
  cout << t + 1;
}
int main() {
  ios_base::sync_with_stdio(false);
  cin.tie(NULL);
  cout.tie(NULL);
  solve();
  cout << "\n";
  ;
}
