#include <bits/stdc++.h>

#include <atcoder/modint>
using namespace std;
using mint = atcoder::modint998244353;
void fast_io() {
    ios::sync_with_stdio(false);
    std::cin.tie(nullptr);
}

int main() {
    fast_io();
    int n;
    string s, t;
    cin >> n >> s >> t;
    int ab = 0, ac = 0, bc = 0;
    for (int i = 0; i < n; i++) {
        if (s[i] == t[i]) {
            continue;
        }
        if (s[i] > t[i]) {
            cout << "No" << endl;
            return 0;
        }
        if (s[i] == 'A' && t[i] == 'B') {
            ab++;
        } else if (s[i] == 'A' && t[i] == 'C') {
            ac++;
        } else if (s[i] == 'B' && t[i] == 'C') {
            bc++;
        }
    }
    if ((ab != bc) || (ac > 0 && ab == 0)) {
        cout << "No" << endl;
    } else {
        cout << "Yes" << endl;
    }
}