#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
  #include "settings/debug.cpp"
#else
  #define Debug(...) void(0)
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)
using ll = long long;
using ull = unsigned long long;

int main() {
  cin.tie(nullptr)->sync_with_stdio(false);
  int n;
  string s, t;
  cin >> n >> s >> t;
  bool ok = true;
  int ab = 0, ac = 0, bc = 0;
  rep(i, n) {
    if (s[i] == t[i]) continue;
    if (s[i] > t[i]) ok = false;
    if (s[i] == 'A' && t[i] == 'B') ab++;
    if (s[i] == 'A' && t[i] == 'C') ac++;
    if (s[i] == 'B' && t[i] == 'C') bc++;
  }
  if (ab != bc) ok = false;
  if (ac > 0 && bc == 0) ok = false;
  cout << (ok ? "Yes" : "No") << '\n';
  return 0;
}