using System;
class Test
{
	public static void Main()
	{
		Console.WriteLine ("該程序將求出三階行列式的值:");
		int[,] A=new int [3,3];
		for(int i=0;i<3;i++)
		{
			for(int j=0;j<3;j++)
			{
				Console.WriteLine ("請輸入第{0}行第{1}列的值:",i+1,j+1);
				A[i,j]=int.Parse (Console.ReadLine ());
			}
		}
		Console.WriteLine ("你輸入的行列式為:");
		for(int i=0;i<3;i++)
		{
			for(int j=0;j<3;j++)
			{
				Console.Write(A[i,j]+"\t");
			}
			Console.WriteLine ();
		}
		int result=A[0,0]*A[1,1]*A[2,2]+A[0,1]*A[1,2]*A[2,0]+A[1,0]*A[2,1]*A[0,2]-A[2,0]*A[1,1]*A[0,2]-A[1,0]*A[0,1]*A[2,2]-A[2,1]*A[1,2]*A[0,0];
		Console.WriteLine ("該三行列式的值是:"+result);
	}
}