#include <bits/stdc++.h>

using namespace std;
#define int long long
#define app push_back
#define all(x) (x).begin(),(x).end()
#ifdef LOCAL
#define debug(...) [](auto...a){ ((cout << a << ' '), ...) << endl;}(#__VA_ARGS__, ":", __VA_ARGS__)
#else
#define debug(...)
#endif
#ifdef LOCAL
#define __int128 long long
#endif // LOCAL
const int inf=1e18;
int32_t main()
{
    ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);
    int n;cin>>n;string s,t;cin>>s>>t;
    for(int i=n-1;i>=0;--i)
    {
        if(s[i]==t[i]) continue;
        if(s[i]!=t[i])
        {
            if(i==0 || s[i]!='B' || s[i-1]!='A' || t[i]!='C')
            {
                cout<<"No";return 0;
            }
            s[i]++;s[i-1]++;
        }
    }
    cout<<"Yes";
    return 0;
}