# your code goes here
x=input()
y=input()
m=x
m2=y
def MCM(a,b,c,d):
if a==b:
return a
elif a<b:
return MCM(a+c,b,c,d)
else:
return MCM(a,b+d,c,d)
mcm=MCM(x,y,m,m2)
print mcm
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCng9aW5wdXQoKQp5PWlucHV0KCkKbT14Cm0yPXkKZGVmIE1DTShhLGIsYyxkKToKCWlmIGE9PWI6CgkJcmV0dXJuIGEKCWVsaWYgYTxiOgoJCXJldHVybiBNQ00oYStjLGIsYyxkKQoJZWxzZToKCQlyZXR1cm4gTUNNKGEsYitkLGMsZCkKbWNtPU1DTSh4LHksbSxtMikKcHJpbnQgbWNt