N=int(input())
S=list(input())
T=list(input())
QA=[]
QB=[]
num=0
for i in range(N):
    if S[i]>T[i]:
        print("No")
        exit(0)
    if S[i]<T[i]:
        if S[i]=="A":QA.append(i)
        elif S[i]=="B":QB.append(i)
        num+=1

cnt=0
while True:
    if num==cnt and S==T:
        print("Yes")
        exit(0)
    if len(QA)==0 or len(QB)==0:
        print("No")
        exit(0)
    a_idx=QA.pop()
    b_idx=QB.pop()
    S[a_idx]="B"
    S[b_idx]="C"
    if S[a_idx]==T[a_idx]:cnt+=1
    else:QB.append(a_idx)
    if S[b_idx]==T[b_idx]:cnt+=1