package main

import (
	"fmt"
	"bufio"
	"os"
)

var S, T []int
var N, D, Diff int

func main() {
	r := bufio.NewReader(os.Stdin)
	w := bufio.NewWriter(os.Stdout)
    defer w.Flush()
	fmt.Fscan(r, &N)
	var s, t string
	fmt.Fscan(r, &s, &t)
	var Q int
	fmt.Fscan(r, &Q)
	S = make([]int, N)
	T = make([]int, N)
	D, Diff = 0, 0
	for i := 0; i < N; i++ {
		var cs, ct int
		cs = (int)(s[i]) - '0'
		ct = (int)(t[i]) - '0'
		S[i] = cs
		T[i] = ct
		if cs != ct {
			if D == 0 {
				if cs > ct {
					D = i + 1
				} else {
					D = -i - 1
				}
			}
			Diff++
		}
	}
	for i := 0; i < Q; i++ {
		var c string
		fmt.Fscan(r, &c)
		var x, y int
		fmt.Fscan(r, &x, &y)
		review(c[0], x, y)
		if D > 0 {
			fmt.Fprintln(w, ">")
		} else if D < 0 {
			fmt.Fprintln(w, "<")
		} else {
			fmt.Fprintln(w, "=")
		}
	}
}

func Abs(x int) int {
	if x >= 0 {
		return x
	} else {
		return -x
	}
}

func review(c byte, x int, y int) {
	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 < Abs(D) {
		if S[x-1] > T[x-1] {
			D = x
		} else {
			D = -x
		}
		Diff++
	} else if x == Abs(D) {
		D = 0
		if S[x-1] == T[x-1] {
			Diff--
			if Diff == 0 {
				return
			}
		}
		for i := x-1; i < N; i++ {
			if S[i] != T[i] {
				if S[i] > T[i] {
					D = i + 1
				} else {
					D = -i - 1
				}
				break
			}
		}
	} else {
		Diff++
	}
}