func_code_string: #include <bits/stdc++.h>   #pragma GCC optimize( -O2 )   using namespace std;   const long double PI = acos(-1);   const int MOD = 998244353, LIM = 2e5 + 5;   const long double EPS = 1e-9;   const int mod = 1000000007;   int main() {     double l, p, q;     std::cin >> l >> p >> q;     double ans = l * p;     ans /= p + q;     std::cout << std::fixed << std::setprecision(9) << ans <<   n ;   }   