#include<iostream>
#include<cstdio>
#include<algorithm>
#include<string.h>
#include<queue>
#include<iostream>
#include<cmath>
using namespace std;
char dna[105],rna[105];
bool check(char d,char r)
{
    if((d=='A'&&r=='U')||(d=='T'&&r=='A')||(d=='C'&&r=='G')||(d=='G'&&r=='C'))
        return true;
    else
        return false;
}
int main()
{
    int t;
    cin>>t;
    while(t--)
    {
        int n;
        cin>>n;
        int flag=1;
        for(int i=0;i<n;i++)
        {
            cin>>dna[i];
        }
        for(int i=0;i<n;i++)
        {
            cin>>rna[i];
        }
        for(int i=0;i<n;i++)
        {
            if(!(check(dna[i],rna[i])))
            {
                flag=0;
                break;
            }
        }
        if(flag)
            cout<<"YES"<<endl;
        else
            cout<<"NO"<<endl;
    }
    //system("pause");
}