import java.util.Scanner;
import java.util.List;
import java.util.ArrayList;
import java.util.Collections;

public class No1439 {
	
	private static int[] S, T;
	private static int N, D;
	private static List<Integer> Diff; 

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		N = scan.nextInt();
		String s = scan.next();
		String t = scan.next();
		int Q = scan.nextInt();
		S = new int[N];
		T = new int[N];
		D = 0;
		Diff = new ArrayList<Integer>();
		for (int i=0; i < N; i++) {
			int cs = s.charAt(i) - '0';
			int ct = t.charAt(i) - '0';
			S[i] = cs;
			T[i] = ct;
			if (cs != ct) {
				if (D == 0) {
					D = i+1;
				} else {
					Diff.add(i+1);
				}
			}
		}
		for (int i=0; i < Q; i++) {
			String c = scan.next();
			int x = scan.nextInt();
			int y = scan.nextInt();
			review(c.charAt(0), x, y);
			if (D == 0) {
				System.out.println('=');
			} else if (S[D-1] > T[D-1] ) {
				System.out.println('>');
			} else {
				System.out.println('<');
			}
		}
		scan.close();
	}
	private static void review(char c, int x, int y) {
		if (c == 'S') {
			if (S[x-1] == y) {
				return;
			}
			S[x-1] = y;
		} else {
			if (T[x-1] == y) {
				return;
			}
			T[x-1] = y;
		}
		if (D == 0 || x < Math.abs(D)) {
			if (D != 0) {
				Diff.add(0, D);
			}
			D = x;
		} else if (x == Math.abs(D)) {
			if (S[x-1] != T[x-1]) {
				D = x;
			} else if (Diff.size() > 0) {
				int i = Diff.remove(0);
				D = i;
			} else {
				D = 0;
			}
		} else {
			int i = Collections.binarySearch(Diff, x);
			if (i < 0) {
				Diff.set(-i-1, x);
			}
		}
	}
}