#include <bits/stdc++.h>
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define LL long long
using namespace std;
int main()
{
    int t, s, d;
    cin >> t >> s >> d;

    cout << fixed << setprecision(12) << (double)d / (double)s << endl;
}