#pragma GCC optimize ("Ofast")
#include<bits/stdc++.h>
using namespace std;
inline int my_getchar_unlocked(){
  static char buf[1048576];
  static int s = 1048576;
  static int e = 1048576;
  if(s == e && e == 1048576){
    e = fread_unlocked(buf, 1, 1048576, stdin);
    s = 0;
  }
  if(s == e){
    return EOF;
  }
  return buf[s++];
}
inline void rd(int &x){
  int k;
  int m=0;
  x=0;
  for(;;){
    k = my_getchar_unlocked();
    if(k=='-'){
      m=1;
      break;
    }
    if('0'<=k&&k<='9'){
      x=k-'0';
      break;
    }
  }
  for(;;){
    k = my_getchar_unlocked();
    if(k<'0'||k>'9'){
      break;
    }
    x=x*10+k-'0';
  }
  if(m){
    x=-x;
  }
}
inline void rd(char &c){
  int i;
  for(;;){
    i = my_getchar_unlocked();
    if(i!=' '&&i!='\n'&&i!='\r'&&i!='\t'&&i!=EOF){
      break;
    }
  }
  c = i;
}
inline int rd(char c[]){
  int i;
  int sz = 0;
  for(;;){
    i = my_getchar_unlocked();
    if(i!=' '&&i!='\n'&&i!='\r'&&i!='\t'&&i!=EOF){
      break;
    }
  }
  c[sz++] = i;
  for(;;){
    i = my_getchar_unlocked();
    if(i==' '||i=='\n'||i=='\r'||i=='\t'||i==EOF){
      break;
    }
    c[sz++] = i;
  }
  c[sz]='\0';
  return sz;
}
inline int rd_int(void){
  int x;
  rd(x);
  return x;
}
struct MY_WRITER{
  char buf[1048576];
  int s;
  int e;
  MY_WRITER(){
    s = 0;
    e = 1048576;
  }
  ~MY_WRITER(){
    if(s){
      fwrite_unlocked(buf, 1, s, stdout);
    }
  }
}
;
MY_WRITER MY_WRITER_VAR;
void my_putchar_unlocked(int a){
  if(MY_WRITER_VAR.s == MY_WRITER_VAR.e){
    fwrite_unlocked(MY_WRITER_VAR.buf, 1, MY_WRITER_VAR.s, stdout);
    MY_WRITER_VAR.s = 0;
  }
  MY_WRITER_VAR.buf[MY_WRITER_VAR.s++] = a;
}
inline void wt_L(char a){
  my_putchar_unlocked(a);
}
inline void wt_L(const char c[]){
  int i=0;
  for(i=0;c[i]!='\0';i++){
    my_putchar_unlocked(c[i]);
  }
}
int N;
char S[200000+2];
char T[200000+2];
char C;
char Y;
int X;
int main(){
  int Q5VJL1cS;
  int i;
  set<int> s;
  rd(N);
  rd(S);
  rd(T);
  for(i=(0);i<(N);i++){
    if(S[i] != T[i]){
      s.insert(i);
    }
  }
  int e98WHCEY = rd_int();
  for(Q5VJL1cS=(0);Q5VJL1cS<(e98WHCEY);Q5VJL1cS++){
    rd(C);
    rd(X);X += (-1);
    rd(Y);
    if(C=='S'){
      S[X] = Y;
    }
    if(C=='T'){
      T[X] = Y;
    }
    if(S[X] == T[X]){
      s.erase(X);
    }
    if(S[X] != T[X]){
      s.insert(X);
    }
    if(s.size() == 0){
      wt_L("=");
      wt_L('\n');
      continue;
    }
    i = *s.begin();
    if(S[i] > T[i]){
      wt_L(">");
      wt_L('\n');
    }
    else{
      wt_L("<");
      wt_L('\n');
    }
  }
  return 0;
}
// cLay version 20210321-1 [beta]

// --- original code ---
// int N;
// char S[2d5+2], T[], C, Y; int X;
// {
//   int i;
//   set<int> s;
//   rd(N,S,T);
//   rep(i,N) if(S[i] != T[i]) s.insert(i);
//   REP(rd_int()){
//     rd(C,X--,Y);
//     if(C=='S') S[X] = Y;
//     if(C=='T') T[X] = Y;
//     if(S[X] == T[X]) s.erase(X);
//     if(S[X] != T[X]) s.insert(X);
//     if(s.size() == 0) wt("="), continue;
//     i = *s.begin();
//     wt(if[S[i] > T[i], ">", "<"]);
//   }
// }