public static void Main()
Console.WriteLine(" input x :");
x = Convert.ToInt32(Console.ReadLine());
Console.WriteLine(" input y :");
y = Convert.ToInt32(Console.ReadLine());
Console.WriteLine(" z=x*x+y equal to {0}" ,z);
Console.WriteLine(" z={1}*{1}+{2} equal to {0}",z,x,y);