#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int N;
string S, T;
int ord[201010];
int main(void){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    cin >> N >> S >> T;
    bool f = true;
    for(int i = 0;i < N;i++){
        f &= (S[i] <= T[i]);
        ord[i] = i;
    }
    sort(ord, ord + N, [](int a, int b){
        if(S[a] != S[b])return S[a] < S[b];
        return T[a] < T[b];
    });
    for(int i = 0, a = 0;i < N;i++){
        if(S[ord[i]] == T[ord[i]])continue;
        if(T[ord[i]] == 'C'){
            a--;
        }
        if(S[ord[i]] == 'A'){
            a++;
        }
        if(i == N - 1 && a != 0)f = false;
    }
    cout << (f ? "Yes\n" : "No\n");
    return 0;
}