public static void Main()
for (int Z = 0; Z < 10; Z++)
for (int Y = 0; Y < 20; Y = Y + 2)
for (int A = 1; A < 3; A++)
Console.WriteLine("Numero de bucle externo es: " + A);
for (int B = 1; B < 4; B++)
Console.WriteLine("Numero de bucles internos es: " + B);