#include <bits/stdc++.h>
#include <atcoder/all>

typedef unsigned long long ULLONG;
typedef long long LLONG;
static const LLONG MOD_NUM = 1000000007LL; //998244353LL;

template<class _T> static void get(_T& a) {
	std::cin >> a;
}
template<class _T> static void get(_T& a, _T& b) {
	std::cin >> a >> b;
}
template<class _T> static void get(_T& a, _T& b, _T& c) {
	std::cin >> a >> b >> c;
}
template <class _T> static _T tp_abs(_T a) {
	if (a < (_T)0) {
		a *= (_T)-1;
	}
	return a;
}

static void task();

int main()
{
	task();
	fflush(stdout);
	return 0;
}

static void task()
{
	int N;
	get(N);

	std::string sS, sT;
	get(sS, sT);

	std::map<int, int> keys;
	for (int i = 0; i < N; i++) {
		std::pair<int, int> key(-1, -1);
		if (sS[i] < sT[i]) {
			keys[i] = 0;
		}
		else if (sS[i] > sT[i]) {
			keys[i] = 1;
		}
	}

	int Q;
	get(Q);

	char mark[] = { '<', '>' };
	for (int q = 0; q < Q; q++) {
		char c;
		get(c);
		int targ, num;
		get(targ, num); targ--;

		if (c == 'T') {
			sT[targ] = num + '0';
		}
		else {
			sS[targ] = num + '0';
		}

		if (sT[targ] > sS[targ]) {
			keys[targ] = 0;
		}
		else if (sT[targ] < sS[targ]) {
			keys[targ] = 1;
		}
		else {
			if (keys.find(targ) != keys.end()) keys.erase(targ);
		}

		if (keys.size()) {
			printf("%c\n", mark[keys.begin()->second]);
		}
		else {
			printf("=\n");
		}
	}
}