#include<iostream>
#include<cstring>
#include<vector>
#include<array>
using namespace std;
using LL = long long;

int main(){

#ifdef LOCAL
    freopen("data.in", "r", stdin);
    freopen("data.out", "w", stdout);
#endif

    cin.tie(0);
    cout.tie(0);
    ios::sync_with_stdio(0);

    int n; string s;
    cin >> n >> s;
    bool v[50][50] = {0};
    int g[50][50] = {0};
    vector<pair<int, int> > p;
    for(int i = 0; i < 1 << n; i++){
        int x = 25, y = 25;
        bool ok = true;
        for(int j = 0; j < n; j++){
            int xx = x, yy = y;
            if (s[j] == 'L') xx--;
            else if (s[j] == 'R') xx++;
            else if (s[j] == 'D') yy--;
            else yy++;
            if (i >> j & 1){
                if (g[xx][yy] == 1 || (xx == 25 && yy == 25)){
                    ok = false;
                    break;
                }
                g[xx][yy] = 2;
                p.push_back({xx, yy});
            }
            else{
                if (g[xx][yy] == 2){
                    ok = false;
                    break;
                }
                x = xx, y = yy;
                g[xx][yy] = 1;
                p.push_back({xx, yy});
            }
        }
        if (ok){
            v[x][y] = true;
        }
        for(auto [xx, yy] : p) g[xx][yy] = 0;
        p.clear();
    }
    vector<pair<int, int> > ans;
    for(int i = 0; i < 50; i++){
        for(int j = 0; j < 50; j++){
            if (v[i][j]){
                ans.push_back({i - 25, j - 25});
            }
        }
    }
    sort(ans.begin(), ans.end());
    cout << ans.size() << '\n';
    for(auto [x, y] : ans) cout << x << ' ' << y << '\n';

}