#include <iostream>
#include <vector>
int main()
{
    int numOfPeriod;
    std::vector<double, double> quality_year;
    std::cin >> numOfPeriod;
    double firstNum = 0, secNum = 0;

    for (int i = 0; i <= numOfPeriod; i++)
    {
        std::cin >> firstNum >> secNum;
        quality_year.push_back(firstNum, secNum);
    }
    return 0;
}