#include <iostream>
#include <iomanip>
#include <algorithm>
using namespace std;
 
typedef pair<double, double> P;
 
int k;
double p;
 
double expDays[1001];
pair<double, double> eq[1001];
 
double calcDays() {
	eq[k] = P(0, 0);
	for( int i = k - 1; i >= 0; i -- ) {
		eq[i] = P( (1 - p) + p * eq[i + 1].first, p * eq[i + 1].second + 1 );
	}
	expDays[0] = eq[0].second / (1. - eq[0].first);
	for( int i = 1; i <= k; i ++ )
		expDays[i] = expDays[0] * eq[i].first + eq[i].second;
	return expDays[0];
}
 
double calcMoney() {
	eq[k] = P(0, 0);
	for( int i = k - 1; i >= 0; i -- )
		eq[i] = P( (1 - p) + p * eq[i + 1].first, p * eq[i + 1].second + 2 * expDays[i] );
	double result = eq[0].second / (1. - eq[0].first) - expDays[0];
	return result;
}
 
int t;
 
int main() {
	//~ freopen("kconsecutive.in", "r", stdin);
	//~ freopen("kconsecutive.out", "w", stdout);
	for( cin >> t; t--; ) {
		cin >> p >> k;
		double days = calcDays();
		double money = calcMoney();
		cout.precision( 3 ); 
		cout.setf( ios::fixed | ios::showpoint );
		cout << days << " " << money << endl;
	}
	return 0;
}