#include<bits/stdc++.h>
#define int long long
using namespace std;

signed main(){

    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

  //  freopen("input.txt","r",stdin); freopen("output.txt","w",stdout);

    int t;
    cin >> t;
    while(t-->0){
        int n;
        string a, b;
        cin >> n;
        cin >> a;
        cin >> b;
        string aa = "",bb="";
        aa += a;
        bb += b;

        for(int i = aa.size() - 1; i > 0; --i){
            if(aa[i] != bb[i]){
                if(aa[i] == '1'){
                    aa[i] = '0';
                    aa[i - 1] = '1';
                }else{
                    aa[i] = '1';
                    aa[i - 1] = '0';
                }
            }
        }

        for(int i = 0; i + 1 < n; ++i){
            if(a[i] != b[i]){
                if(a[i] == '1'){
                    a[i] = '0';
                    a[i + 1] = '1';
                }else{
                    a[i] = '1';
                    a[i + 1] = '0';
                }
            }
        }
        if(a == b || aa == bb)cout << "YES\n"; else cout << "NO\n";
    }

    return 0;
}