// 1005.cpp : 定义控制台应用程序的入口点。

//

#include "stdafx.h"

#include "stdio.h"

#include "iostream"

using namespace std;

#define  pi 3.1415926

int main(int argc, char* argv[])

{

    int n=;

    cin>>n;

    int year=;

    int i=;

    int *res =new int[n];

    while (i<n)

    {

        float a=,b=;

        cin>>a>>b;

        double square=pi*(a*a+b*b)/;

        double dt=square/;

        year=dt;

        if(square>year*)  //不加也可以AC

            res[i]=year+;

        else

            res[i]=year;

        i++;

    }

    for (int j=;j<n;j++)

    {

        printf("Property %d: This property will begin eroding in year %d.\n",j+,res[j]);

    }

    printf("END OF OUTPUT.");//忘记加这个结果WA半天，也怪自己

    return ;

}