using System;
using System.Numerics;
public class Example
{
public static void Main()
{
BigInteger[] numbers = { BigInteger.MinusOne, BigInteger.Pow(Int32.MaxValue, 2) };
BigInteger largest = numbers[numbers.GetLowerBound(0)];
for (int ctr = numbers.GetLowerBound(0) + 1; ctr <= numbers.GetUpperBound(0); ctr++)
largest = BigInteger.Max(largest, numbers[ctr]);
Console.WriteLine(largest);
}
}