#include<stdio.h>
long Small(long p, long q)
{
	long n = p > q ? p : q;
	long m = 1;
	while (m)
	{
		if ((m * n) % p == 0 && (m * n) % q == 0)
		{
			break;
		}
		m++;
	}
	return m * n;
}
long Big(long x, long y)
{
	long z = 0;
	while (x % y)
	{
		z = x % y;
		x = y;
		y = z;
	}
	return y;
}
int main()
{
	long a = 0;
	long b = 0;
	long sum = 0;
	scanf("%ld %ld", &a, &b);
	long i = Big(a, b);
	long j = (a*b)/i;
	sum = i + j;
	printf("%ld\n", sum);
	return 0;
}