#include <bits/stdc++.h>
using namespace std;
int main(){
    int a[15]={0},m=0,n,x,d;
    cin>>n;
    for(m=0;m<n;m++){
    	cin>>a[m];
    }
    d=a[0];
    for(m=0;m<n;m++){
    	if(d<a[m]){
    		d=a[m];
    		x=m+1;
    	}
    	
    }
    printf("%.2f",d*d*3.14);
    cout<<" "<<x;
}
/**************************************************************
	Problem: 1813
	User: lvrenxiang
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2076 kb
****************************************************************/