#include <bits/stdc++.h>
const int INF = 1000000009;
using namespace std;
int main() {
  int n, i, l = 0, r = 0;
  string s;
  cin >> n >> s;
  s = "." + s;
  for (i = 1; i < s.size(); i++)
    if (s[i] == 'L')
      l = 1;
    else if (s[i] == 'R')
      r = 1;
  if (r && l)
    cout << s.find('R') << " " << s.find('L') - 1 << "\n";
  else if (r && !l)
    cout << s.find('R') << " " << s.rfind('R') + 1 << "\n";
  else
    cout << s.rfind('L') << " " << s.find('L') - 1 << "\n";
  return 0;
}
