#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define dou double
struct node{
	string m;
	ll b;
	double c,s;
	void check(){
		c = 6.28 * b;
		s = 3.14 * b * b;
	}
	bool operator < (const node t) const{
		return m < t.m;
	}
	void print(){
		cout << m << " " << b << " ";
		printf("%.1f %.1f",c,s);
		cout << endl;
	} 
}a[1005];
ll n;
int main(){
//	freopen("data01.txt","r",stdin);
	cin >> n;
	for(ll i = 1;i <= n;i++){
		cin >> a[i].m >>a[i].b;
		a[i].check();
	} 
	sort(a + 1,a + n + 1);
	for(ll i = 1;i <= n;i++)
		a[i].print();
	return 0;
}