def check(A,B,f):
  # return A<B
  AA=f(A)
  BB=f(B)
  for aa,bb in zip(AA,BB):
    if aa!=bb:
      return check(aa,bb,f)
  return len(AA)<len(BB)

def f(S):
  temp=[]
  cnt=0
  for c in S[::-1]:
    if c=='0':
      cnt+=1
    else:
      temp.append(bin(cnt)[2:])
      cnt=0
  ans=[]
  for s in temp[::-1]:
    #while len(ans) and check(ans[-1],s,f):
    #  ans.pop()
    ans.append(s)
  return ans

N=input()
M=input()
print("Yes" if check(N,M,f) else "No")