#include <bits/stdc++.h>

#include <atcoder/all>
#define rep(i, a, b) for (ll i = (ll)(a); i < (ll)(b); i++)
using namespace std;
using namespace atcoder;

typedef long long ll;

int main() {
    int n;
    string s, t;
    cin >> n >> s >> t;
    int ab = 0, bc = 0, ac = 0;
    rep(i, 0, n) {
        if (s[i] == t[i]) continue;
        if (s[i] == 'A' && t[i] == 'B')
            ab++;
        else if (s[i] == 'B' && t[i] == 'C')
            bc++;
        else if (s[i] == 'A' && t[i] == 'C')
            ac++;
        else {
            cout << "No" << endl;
            return 0;
        }
    }
    int ad = ab + bc + ac * 2;
    if (ad % 2) {
        cout << "No" << endl;
        return 0;
    }
    bool ok = true;
    if (ac && bc == 0) ok = false;
    if (ab == bc && ok) {
        cout << "Yes" << endl;
    } else {
        cout << "No" << endl;
    }
}