#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]);
    }
    int ab = 0, ac = 0, bc = 0;
    for(int i = 0;i < N;i++){
        if(S[i] == 'A' && T[i] == 'B')ab++;
        if(S[i] == 'A' && T[i] == 'C')ac++;
        if(S[i] == 'B' && T[i] == 'C')bc++;
    }
    f &= ab == bc && ab > 0;
    cout << (f ? "Yes\n" : "No\n");
    return 0;
}