beak40101

class beakJ40101:
    def __init__(self):
        self.RESult = [] # type of list
        self.numONE = -1
        self.numTWO = -1

def main():
    MYbeakJ40101 = beakJ40101()
    while True:
        MYbeakJ40101.numONE, MYbeakJ40101.numTWO = map(int, raw_input().split())
        if MYbeakJ40101.numONE == 0 and MYbeakJ40101.numTWO == 0:
            break
        else:
            if MYbeakJ40101.numONE > MYbeakJ40101.numTWO:
                MYbeakJ40101.RESult.append("Yes")
            else:
                MYbeakJ40101.RESult.append("No")
    for i in range(0, len(MYbeakJ40101.RESult)):
        print "{}".format(MYbeakJ40101.RESult[i])

if __name__ == "__main__":
    main()