#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;
}
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