Help in solving problem in C programming

Please keep the program in the orginal form. I am writing in C program using a C compiler.

Need help at the end of the program. It needs a DO-WHILE statement at the end. Selecting Y should go to the main menu. Selecting N should print "The End".

getch (); and return (0); must be at the end of my compiler to work.

do{
printf ("Would you like to convert another currency? Y or Nn")

}while

/*Currency conversion.*/

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <system.h>
main ()
{
/* Data Declaration statements*/

int Curr_type;
float For_curr;
float Equ_curr;
int choice;

printf("CURRENCY CONVERTERn");
printf("Choose currency optionn");
printf("Press 1 for MXN: Mexican Peson");
printf("Press 2 for JPY: Japanese Yenn");
printf("Press 3 for HKD: Hong Kong Dollarsn");
printf("Press 4 for KRW: Korean Wonn");
printf("Press 5 for PHP: Philippine Peson");
printf("Enter the type of currency:");
scanf("%d", &Curr_type);/* & symbol assigns L-H and R-H to the left hand quantity*/
printf("Enter the amount in USD that you would like to convert to foreign currency:n");
scanf("%f", &For_curr);

/* Switch statement to Case Curr_type (1, 2, 3, 4, 5)*/
switch(Curr_type)
{

/* MXN: Mexican Peso */
case 1:
Equ_curr = ((For_curr) / (0.08764));
printf ("The equivalent of %.2f USD is %.2f MXN n", For_curr, Equ_curr);
break; /* Jump to end of switch*/

/* JPY: Japanese Yen */
case 2:
Equ_curr = ((For_curr) / (0.009093));
printf ("The equivalent of %.2f USD is %.2f JPY n", For_curr, Equ_curr);
break; /* Jump to end of switch*/

/* HKD: Hong Kong Dollars */
case 3:
Equ_curr = ((For_curr) / (0.1283));
printf ("The equivalent of %.2f USD is %.2f HKD n", For_curr, Equ_curr);
break; /* Jump to end of switch*/

/* KRW: Korean Won */
case 4:
Equ_curr = ((For_curr) / (0.0008591));
printf ("The equivalent of %.2f USD is %.2f KRW n", For_curr, Equ_curr);
break; /* Jump to end of switch*/

/* PHP: Philippine Peso */
case 5:
Equ_curr = ((For_curr) / (0.01791));
printf ("The equivalent of %.2f USD is %.2f PHP n", For_curr, Equ_curr);
break; /* Jump to end of switch*/

/*Other: Currency of any other country */
default:
printf("We are sorry, this system doesn't support conversion for this currencyn");

} /*end switch */

getch ();
return (0);

}