#include<iostream> #include<iomanip> using namespace std; int main() { double f; cin>>f; double c=5*(f-32)/9.0; cout<<fixed<<setprecision(5)<<c; return 0; }
#include<iostream> #include<iomanip> using namespace std; int main() { double f; cin>>f; double c=5*(f-32)/9.0; cout<<fixed<<setprecision(5)<<c; return 0; }