/**
*    author:  shu8Cream
*    created: 26.03.2021 21:18:29
**/

#include <bits/stdc++.h>
using namespace std;
#define rep(i,n) for (int i=0; i<(n); i++)
#define all(x) (x).begin(), (x).end()
using ll = long long;
using P = pair<int,int>;
using vi = vector<int>;
using vvi = vector<vi>;

int main() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int n,q; string s,t;
    cin >> n >> s >> t >> q;
    rep(_,q){
        char c; int x,y;
        cin >> c >> x >> y;
        x--;
        if(c=='S') s[x]=char('0'+y);
        else t[x]=char('0'+y);
        if(s.compare(t)==0) cout << "=" << endl;
        else if(s.compare(t)>0) cout << ">" << endl;
        else cout << "<" << endl;
    }
}