using System; public class Program 

{   public static void Main()

{       double [] S = new double [6] ;

        int [] R = new int [6] ;

        int [] V = new int [6] ;

        double pi = Math.PI ; Console.WriteLine("...... пи = "+"{0:F2}",+pi);

        Console.Write("A = ") ; int A = int.Parse(Console.ReadLine());

        Console.Write("B = ") ; int B = int.Parse(Console.ReadLine());

        S[0] = A*B ; Console.WriteLine("......=> S[0] = "+"{0:F2}",+S[0]);

for (int i = 1; i <= 4; i++)

    {   Console.Write("R["+i+"] = ");int N=int.Parse(Console.ReadLine());R[i]=N;

        Console.Write("V["+i+"] = ");int M=int.Parse(Console.ReadLine());V[i]=M;

        if (V[i] == 0) { S[i] =          pi*R[i]*R[i]/4; } 

   else if (V[i] == 1) { S[i] =R[i]*R[i]-pi*R[i]*R[i]/4; }

        Console.WriteLine("........=> S["+i+"] = "+"{0:F2}",+S[i]);

    }   S[5]=S[0]-S[1]-S[2]-S[3]-S[4];Console.Write(".......................=> ");

        Console.Write("S[]=S[0]-S[1]-S[2]-S[3]-S[4] = "+"{0:F2}",+S[5]);

}}