N = int(input())
S = int(input())
T = int(input())
Q = int(input())
sl = len(str(S))
tl = len(str(T))
s = ""
t = ""


ok = True
for ss in str(S):
  if ok:
    if len(str(S)) < N:
      for i in range(N-len(str(S))):
        s += "0"
        ok = False
  s += ss

ok = True
for ss in str(T):
  if ok:
    if len(str(T)) < N:
      for i in range(N-len(str(T))):
        t += "0"
        ok = False
  t += ss
s = list(s)
t = list(t)
for _ in range(Q):
  A = list(map(str, input().split()))
  if A[0] == "S":
    s[int(A[1])-1] = A[2]
  else:
    t[int(A[1])-1] = A[2]
  sa = "".join(s)
  ta = "".join(t)
  if sa == ta:
    print("=")
    continue
  if sa > ta:
    print(">")
    continue
  else:
    print("<")
    continue