#include <bits/stdc++.h>

const int maxn = 20;

int n;
std::vector<std::pair<int, int>> vres;
std::array<char, maxn + 2> str;
std::array<std::array<int, maxn * 2 + 1>, maxn * 2 + 1> type;

void dfs(int d, int x, int y) {
  if (d == n + 1) {
    vres.emplace_back(x, y);
    return;
  }

  int nx = x, ny = y;
  switch (str[d]) {
    case 'L':
      --nx;
      break;
    
    case 'R':
      ++nx;
      break;

    case 'D':
      --ny;
      break;

    case 'U':
      ++ny;
      break;
  }
  if (type[nx][ny] != 2) {
    int o = type[nx][ny];
    type[nx][ny] = 1;
    dfs(d + 1, x, y);
    type[nx][ny] = o;
  }
  if (type[nx][ny] != 1) {
    int o = type[nx][ny];
    type[nx][ny] = 2;
    dfs(d + 1, nx, ny);
    type[nx][ny] = o;
  }
}

int main() {
  #ifndef ONLINE_JUDGE
    std::freopen("E.in", "r", stdin);
    std::freopen("E.out", "w", stdout);
  #endif

  std::cin >> n >> std::next(str.data());
  type[maxn][maxn] = 2;
  dfs(1, maxn, maxn);

  std::sort(vres.begin(), vres.end());
  vres.erase(std::unique(vres.begin(), vres.end()), vres.end());
  std::cout << vres.size();
  for (const std::pair<int, int> &pr : vres)
    std::cout << '\n' << pr.first - maxn << ' ' << pr.second - maxn;
  std::cout << std::endl;
  return 0;
}