#include <bits/stdc++.h>
    using namespace std;
    #include <math.h>
    #include <iomanip>
    #include <cstdint>
    #include <string>
    #include <sstream>
    template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
    template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
    #define rep(i,n) for (int i = 0; i < (n); ++i)
    typedef long long ll;
    using P=pair<int,int>;
    const int INF=1001001001;
    const int mod=1e9+7;

    int main(){
      int n,q;
      string s,t;
      cin>>n>>s>>t>>q;
      auto check=[&](string l,string r){
        if(l.size()==r.size()){
          if(l<r){return -1;}
          if(l>r){return 1;}
          if(l==r){return 0;}
        }
        else{
          if(l.size()<r.size()){return -1;}
          if(l.size()>r.size()){return 1;}
        }
      };
      rep(i,q){
        char c;
        int x,y;
        cin>>c>>x>>y;
        x--;y--;
        if(c=='S'){s[x]=char(y+1+'0');}
        else{t[x]=char(y+1+'0');}
        if(check(s,t)==-1){cout<<'<'<<endl;}
        else if(check(s,t)==0){cout<<'='<<endl;}
        else{cout<<'>'<<endl;}
      }
      return 0;
    }