#include <bits/stdc++.h>
//#include "atcoder/all"
typedef long long int ll;
using namespace std;
// using namespace atcoder;
ll gcd(ll x, ll y) {
    if (y == 0) {
        return x;
    }
    else {
        return gcd(y, x % y);
    }
}
int main() {
    ll a, b;
    cin >> a >> b;
    ll m = gcd(a, b);
    ll k = a / m;
    ll l = b / m;
    cout << m * gcd(k + l, m) << endl;
    return 0;
}