using System;

public class Program

{

    public static void Main()

    {

        char opc;

            menu: Console.WriteLine("Escoja una opcion");

            Console.WriteLine("a- Cafe Grande 1700$");

            Console.WriteLine("b- Cafe Mediano 1100$");

            Console.WriteLine("c- Cafe Pequeño 700$");

​

            opc = Convert.ToChar(Console.ReadLine());

            switch (opc)

            {

                case 'a':

                   int cafeg, azucar1, opc1, resul;

                    Console.WriteLine("Eliga una opcion:");

                    Console.WriteLine("1- 100$ Azucar");

                    Console.WriteLine("2- 200$ Azucar");

                    Console.WriteLine("3- 300$ Azucar");

                    Console.WriteLine("4- 400$ Azucar");

                    Console.WriteLine("5- 500$ Azucar");

                    Console.WriteLine("6- 600$ Azucar");

                    Console.WriteLine("7- Sin Azucar");

                    opc1 = Convert.ToInt32(Console.ReadLine());

​

                    switch (opc1)

                    {

                        case 1: cafeg = 1700;

                            double desc, rest;

                            azucar1 = 100;

                            resul = cafeg + azucar1;

                            desc = resul * 0.10;

                            rest = resul - desc;        

                            Console.WriteLine("su valor total es de: " + rest);

                            break;

                        case 2: cafeg = 1700;

                            double desc1, rest2;

                            azucar1 = 200;

                            resul = cafeg + azucar1;

                            desc1 = resul * 0.10;

                            rest2 = resul - desc1;        

                            Console.WriteLine("su valor total es de: " + rest2);

                            break;

                        case 3: cafeg = 1700;

                            double desc2, rest1;

                            azucar1 = 300;

                            resul = cafeg + azucar1;

                            desc2 = resul * 0.10;

                            rest1 = resul - desc2;        

                            Console.WriteLine("su valor total es de: " + rest1);

                            break;

                        case 4: cafeg = 1700;

                            double desc3, rest3;

                            azucar1 = 400;

                            resul = cafeg + azucar1;

                            desc3 = resul * 0.10;

                            rest3 = resul - desc3;        

                            Console.WriteLine("su valor total es de: " + rest3);

                            break;  

                            case 5: cafeg = 1700;

                            double desc4, rest4;

                            azucar1 = 500;

                            resul = cafeg + azucar1;

                            desc4 = resul * 0.10;

                            rest4 = resul - desc4;        

                            Console.WriteLine("su valor total es de: " + rest4);

                            break;      

                                case 6: cafeg = 1700;

                            double desc5, rest5;

                            azucar1 = 600;

                            resul = cafeg + azucar1;

                            desc5 = resul * 0.10;

                            rest5 = resul - desc5;        

                            Console.WriteLine("su valor total es de: " + rest5);

                            break;  

                                case 7: cafeg = 1700;

                            double desc6, rest6;

                                         desc6 = cafeg* 0.10;

                            rest6 = cafeg - desc6;        

                            Console.WriteLine("su valor total es de: " + rest6);

                            break;  

                        default: Console.WriteLine("OPCION INVALIDA");

                            break;

                    }

                    goto menu;

                case 'b':

                    int  cafm,  opc2;

                    Console.WriteLine("Eliga una opcion:");

                    Console.WriteLine("1- 100$ Azucar");

                    Console.WriteLine("2- 200$ Azucar");

                    Console.WriteLine("3- 300$ Azucar");

                    Console.WriteLine("4- 400$ Azucar");

                    Console.WriteLine("5- 500$ Azucar");

                    Console.WriteLine("6- 600$ Azucar");

                    Console.WriteLine("7- Sin Azucar");

                    opc2 = Convert.ToInt32(Console.ReadLine());

​

                    switch (opc2)

                    {

                        case 1: cafm = 1100;

                            double desc, rest;

                            azucar1 = 100;

                            resul = cafm + azucar1;

                            desc = resul * 0.10;

                            rest = resul - desc;        

                            Console.WriteLine("su valor total es de: " + rest);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;

                        case 2: cafeg = 1100;

                            double desc1, rest2;

                            azucar1 = 200;

                            resul = cafeg + azucar1;

                            desc1 = resul * 0.10;

                            rest2 = resul - desc1;        

                            Console.WriteLine("su valor total es de: " + rest2);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;

                        case 3: cafeg = 1100;

                            double desc2, rest1;

                            azucar1 = 300;

                            resul = cafeg + azucar1;

                            desc2 = resul * 0.10;

                            rest1 = resul - desc2;        

                            Console.WriteLine("su valor total es de: " + rest1);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;

                        case 4: cafeg = 1100;

                            double desc3, rest3;

                            azucar1 = 400;

                            resul = cafeg + azucar1;

                            desc3 = resul * 0.10;

                            rest3 = resul - desc3;        

                            Console.WriteLine("su valor total es de: " + rest3);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;  

                            case 5: cafeg = 1100;

                            double desc4, rest4;

                            azucar1 = 500;

                            resul = cafeg + azucar1;

                            desc4 = resul * 0.10;

                            rest4 = resul - desc4;        

                            Console.WriteLine("su valor total es de: " + rest4);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;      

                                case 6: cafeg = 1100;

                            double desc5, rest5;

                            azucar1 = 600;

                            resul = cafeg + azucar1;

                            desc5 = resul * 0.10;

                            rest5 = resul - desc5;        

                            Console.WriteLine("su valor total es de: " + rest5);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;  

                                case 7: cafeg = 1100;

                            double desc6, rest6;

                                         desc6 = cafeg* 0.10;

                            rest6 = cafeg - desc6;        

                            Console.WriteLine("su valor total es de: " + rest6);

                            Console.WriteLine("su valor sin descuento seria:" +cafeg);

                            break;

                            default: Console.WriteLine("OPCION INVALIDA");

                            break;

                    }

                    goto menu;

                    case 'c':

                    int     opc3;

                    Console.WriteLine("Eliga una opcion:");

                    Console.WriteLine("1- 100$ Azucar");

                    Console.WriteLine("2- 200$ Azucar");

                    Console.WriteLine("3- 300$ Azucar");

                    Console.WriteLine("4- 400$ Azucar");

                    Console.WriteLine("5- 500$ Azucar");

                    Console.WriteLine("6- 600$ Azucar");

                    Console.WriteLine("7- Sin Azucar");

                    opc3 = Convert.ToInt32(Console.ReadLine());

​

                    switch (opc3)

                    {

                        case 1: cafm = 900;

                            double desc, rest;

                            azucar1 = 100;

                            resul = cafm + azucar1;

                            desc = resul * 0.10;

                            rest = resul - desc;        

                            Console.WriteLine("su valor total es de: " + rest);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;

                        case 2: cafeg = 700;

                            double desc1, rest2;

                            azucar1 = 200;

                            resul = cafeg + azucar1;

                            desc1 = resul * 0.10;

                            rest2 = resul - desc1;        

                            Console.WriteLine("su valor total es de: " + rest2);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;

                        case 3: cafeg = 700;

                            double desc2, rest1;

                            azucar1 = 300;

                            resul = cafeg + azucar1;

                            desc2 = resul * 0.10;

                            rest1 = resul - desc2;        

                            Console.WriteLine("su valor total es de: " + rest1);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;

                        case 4: cafeg = 700;

                            double desc3, rest3;

                            azucar1 = 400;

                            resul = cafeg + azucar1;

                            desc3 = resul * 0.10;

                            rest3 = resul - desc3;        

                            Console.WriteLine("su valor total es de: " + rest3);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;  

                            case 5: cafeg = 700;

                            double desc4, rest4;

                            azucar1 = 500;

                            resul = cafeg + azucar1;

                            desc4 = resul * 0.10;

                            rest4 = resul - desc4;        

                            Console.WriteLine("su valor total es de: " + rest4);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;      

                                case 6: cafeg = 700;

                            double desc5, rest5;

                            azucar1 = 600;

                            resul = cafeg + azucar1;

                            desc5 = resul * 0.10;

                            rest5 = resul - desc5;        

                            Console.WriteLine("su valor total es de: " + rest5);

                            Console.WriteLine("su valor sin descuento seria:" +resul);

                            break;  

                                case 7: cafeg = 700;

                            double desc6, rest6;

                                         desc6 = cafeg* 0.10;

                            rest6 = cafeg - desc6;        

                            Console.WriteLine("su valor total es de: " +rest6 ) ;

                            Console.WriteLine("su valor sin descuento seria:" +cafeg);

                                break;

                            default: Console.WriteLine("OPCION INVALIDA");

                            break;

                    }

                    goto menu;

                default: Console.WriteLine("OPCION INVALIDA");

                    break;

            }

    }

}