GIRLSNBS.cpp

#include<iostream>
using namespace std;

int main()
{
//	freopen("input.txt","r",stdin);
	int G, B;
	while(true)
	{
		cin >> G >> B;
		if(G == -1 && B == -1) break;

		int min = ((G < B) ? G : B);
		int max = (G + B) - min;

		int tmp = max % (min+1);
		if(tmp == 0) cout << max / (min+1) << endl;
		else cout << (max / (min+1)) + 1 << endl;
	}
	return 0;
}