@cache
def f(a,b):
    x=((a&3)<<2)|(b&3)
    if a==b:
        return True
    if (a,b)==(0,1) or (a,b)==(1,0) or x in {6,11,14}:
        return False
    if x in {2,7,8,13}:
        return f(a>>1,b>>1)
    if x in {0,3,5,9,10,12,15}:
        return f(a>>2,b>>2)
    return f(a>>1,(b>>1)|1) or f((a>>1)|1,b>>1)

def hexagonalGrid(a, b):
    return "YES" if f(int(a,2),int(b,2)) else "NO"