문제
풀이
#include <cmath>
#include <iomanip>
#include <iostream>
#include <string>
using namespace std;
void solve(void) {
string a, b; double c; cin >> a >> b >> c;
cout << fixed << setprecision(2) << (a == "H" ? -log10(c) : log10(c) + 14) << "\n";
}
int main(void) {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t; cin >> t;
while (t--) solve();
return 0;
}