#include "bits/stdc++.h" #pragma GCC optimize("Ofast") // Begin {{{ using namespace std; #ifndef DEBUG #define dump(...) #endif template <class A, class B> inline bool chmax(A &a, const B &b) { return b > a && (a = b, true); } template <class A, class B> inline bool chmin(A &a, const B &b) { return b < a && (a = b, true); } template <class T> inline vector<T> make_v(const T &initvalue, intmax_t sz) { return vector<T>(sz, initvalue); } template <class T, class... Args> inline auto make_v(const T &initvalue, intmax_t sz, Args... args) { return vector<decltype(make_v<T>(initvalue, args...))>(sz, make_v<T>(initvalue, args...)); } constexpr int INF = 0x3f3f3f3f; constexpr int64_t LINF = 0x3f3f3f3f3f3f3f3fLL; // }}} End signed main() { ios_base::sync_with_stdio(false); cin.tie(nullptr); int a, b, c; cin >> a >> b >> c; cout << fixed << setprecision(12); cout << (double) a / b * c << "\n"; return 0; }