#include <iostream>
#include <cmath>
#include <vector>
#include <windows.h>
#include <cstdlib>

using namespace std;

int main()
{
    vector <float> BMI;
    int numberOfSurveyedPeople;
    cin >> numberOfSurveyedPeople;
    for (int i = 0; i < numberOfSurveyedPeople; i++){

        //string nameOfTheSurveyedPerson;
        int bodyWeightKilogram = 0;
        int heightCentimeters = 0;
        cin /*>> nameOfTheSurveyedPerson */>> bodyWeightKilogram >> heightCentimeters;
        float heightMeters = (heightCentimeters / 100);
        float squaredValueOfTheHeight = pow(heightCentimeters,2);
        float bmiValue = (bodyWeightKilogram / squaredValueOfTheHeight);
        cout << bmiValue;
        BMI.push_back(bmiValue);
    }
    /*for(float j = 0; j < BMI.size(); j++){
        if(BMI[j] >= 25)
            cout << "nadwaga" << endl;  // nameOfTheSurveyedPerson;
        else if(BMI[j] > 18.5 && BMI[j] < 25)
            cout << "wartosc prawidlowa";
        else(BMI[j] <= 18.5);
            cout << "niedowaga";*/
    return 0;
}