#python3题解#

def getInnerNum(a, b):
    return getInnerNum(b, a % b) if b else a
def getOuterNum(a, b, innerNum):
    return a // innerNum * b
x, y = map(int, input().split())
innerNum = getInnerNum(min(x,y), max(x,y))
outerNum = getOuterNum(x, y, innerNum)
print(innerNum + outerNum)