I Think I Need a Houseboat

import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.lang.reflect.Array;
import java.net.*;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class Main
{

public static void main(String args[])
{
my_1005();
}
static void my_1005()
{
Scanner in = new Scanner(System.in);
int n = in.nextInt();
double[] a = new double
;
double[] b = new double
;
int m = 0;
while( m < n )
{
a[m] = in.nextDouble();
b[m] = in.nextDouble();
m++;
}

m = 0;

double area ;

while( m < n )
{
area = Math.PI * (a[m]*a[m] + b[m]*b[m]) /2 ;
System.out.println("Property "+(m+1)+": This property will begin eroding in year "+((int)area/50 + 1)+".");
m++;
}
System.out.println("END OF OUTPUT.");
}

}