逻辑题。

while True:
    try:
        a, b = [int(x) for x in input().split()]
        if(a > b):
            for i in range(b):
                if((a*(i+1)) % b == 0):
                    print(a*(i+1))
                    break
        else:
            for i in range(a):
                if((b*(i+1)) % a == 0):
                    print(b*(i+1))
                    break
    except:
        break