#include<iostream>
#include<algorithm>
#include<vector>
using namespace std;
using ll=long long;
#define all(v) v.begin(),v.end()
#define rall(v) v.rbegin(),v.rend()
template<class T> bool chmax(T &a, T b){if (a < b){a = b;return true;} else return false;}
template<class T> bool chmin(T &a, T b){if (a > b){a = b;return true;} else return false;}

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    int N;
    string S,T;
    cin>>N>>S>>T;
    int X=0,Y=0,Z=0;
    for(int i=0;i<N;i++){
        if(S[i]>T[i]){
            cout<<"No"<<"\n";
            return 0;
        }
        if(S[i]=='A'&&T[i]=='B')X++;
        if(S[i]=='B'&&T[i]=='C')Y++;
        if(S[i]=='A'&&T[i]=='C')Z++;
    }
    while(X>0||Y>0||Z>0){
        if(Z>0){
            if(Y==0){
                cout<<"No"<<"\n";
                return 0;
            }
            Z--;
        }else{
            if(X==0||Y==0){
                cout<<"No"<<"\n";
                return 0;
            }
            X--;
            Y--;
        }
    }
    cout<<"Yes"<<"\n";
}