#include <bits/stdc++.h>
int dx[] = {0, 0, 1, -1, 2, 2, -2, -2, 1, -1, 1, -1};
int dy[] = {1, -1, 0, 0, 1, -1, 1, -1, 2, 2, -2, -2};
using namespace std;
class PAIR {
 public:
  long long int first;
  long long int second;
  long long int third;
};
vector<long long int> V, V2, V3;
int main() {
  long long int tcase = 1;
  for (long long int test = 1; test <= tcase; test++) {
    long long int n, cntl = 0, cntr = 0;
    scanf("%lld", &n);
    string s;
    cin >> s;
    printf("%lld\n", n + 1);
  }
}
