#include <bits/stdc++.h>
#include <iostream>
#include <string>
#include <stdio.h>
#include <math.h>
#define rep(i, n) for (int i = 0; i < n; i++)
#define ll long long
#define be(x) x.begin(), x.end()
using namespace std;

int main()
{
    int n,q;
    string s,t;
    cin >> n >> s >> t >> q;

    rep(i,q){
        string c;
        int x,y;
        cin >> c >> x >> y;

        if(c=="S"){
            s[x-1] = y;
        }
        else{
            t[x-1] = y;
        }
        ll san = stoll(s);
        ll tan = stoll(t);
   
        if(san>tan) cout <<">"<<endl;
        else if (san==tan) cout << "="<<endl;
        else cout<<"<"<<endl;
   
    }
    return 0;
}