#include <iostream>
using namespace std;
int main()
{
	double jonasYears=27;
		double metteYears=42;
		double avarageAge=(jonasYears+metteYears)/2;
		cou<<avarageAge<<endl;
		double jonasMonth=jonasYears*12;
		double metteMonth=metteYears*12;
		double avarageMonth=(jonasMonth+metteMonth)/2;
		cout<<avarageMonth<<endl;
}