#include <iostream>
using namespace std;
using ll=long long;
ll n,a,b;

void solve()
{
  cin>>n>>a>>b;
	cout<<n/a+n%a/b<<endl;
}
int main() 
{
	ios::sync_with_stdio(false);
	cin.tie(nullptr);
	solve();
	return 0;
}//大家都i做出来了喵 玩一辈子绝区零喵