#include<bits/stdc++.h>
using namespace std;
int main(){
	int N;
	cin>>N;
	string S,T;
	cin>>S>>T;
	int A=0,B=0,C=0;
	for(int i=0;i<N;i++){
		if(S[i]>T[i]) C=1;
		if(S[i]!=T[i]){
			A++;
			if(T[i]-S[i]==2) B++;
		}
	}
	if((A+B)%2==0&&C==0&&(A!=1||B!=1)){
		cout<<"Yes\n";
	}
	else{
		cout<<"No\n";
	}
}