#include <bits/stdc++.h>
using namespace std;
int main () {
	int N;
	cin >> N;
	string s, t;
	cin >> s >> t;
	auto cc = [](char c) -> int {
		return c - 'A';
	};
	int cnt[] = {0, 0, 0};
	for (int i = 0; i < N; i ++) {
		int c1 = cc(s[i]), c2 = cc(t[i]);
		if (c1 > c2) {
			puts("No");
			return 0;
		}
		if (c1 != c2) {
			int id = (c1 == 1 ? 1 : (c2 == 1 ? 0 : 2));
			cnt[id] ++;
		}
	}
	if (cnt[2]) {
		cout << (cnt[0] && (cnt[0] == cnt[1]) ? "Yes" : "No") << endl;
	} else {
		cout << (cnt[0] == cnt[1] ? "Yes" : "No") << endl;
	}
}