from collections import deque
N=int(input())
S=list(input())
T=list(input())
QA=deque()
QB=[]
for i in range(N):
    if S[i]>T[i]:
        print("No")
        exit(0)
    if S[i]<T[i]:
        if S[i]=="A":
            if T[i]=="B":QA.appendleft(i)
            else:QA.append(i)
        elif S[i]=="B":QB.append(i)

while len(QA)*len(QB):
    a_idx=QA.pop()
    b_idx=QB.pop()
    S[a_idx]="B"
    S[b_idx]="C"
    if S[a_idx]!=T[a_idx]:QB.append(a_idx)

if S==T:print("Yes")
else:print("No")