#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,a,b,aa=0,bb=0,sum=0;
    cin>>n>>a>>b;
    while(aa+bb<=n)
    {
        aa+=a;bb+=b;sum++;
    }
    cout<<sum-1;
    return 0;
}

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int a;
	cin>>a>>b>>c;
	cout<<a/(b+c);
	return 0;
}