#include <iostream>
#include <cmath>
#include <iomanip>
using namespace std;  
int main()
  {
    int a,b,res; float c;
    cin>>a;
    cin>>b;
    cin>>c;
    res=(a-b)/c;
    cout<<res << endl;
    cout << std::setprecision(16) << (float)(a-b)/c << endl;
  }