#include <stdio.h>
#include <stdlib.h>

// Morse Code 
//
// Write a complete C program which reads one-digit integers from the 
// keyboard and prints their corresponding Morse codes. You can assume 
// that the user will always enter one one-digit integer per line. The
// program must end when the user enters -1. 
//
// The international Morse codes for the ten integers are:
// 1 . _ _ _ _
// 2 . . _ _ _
// 3 . . . _ _
// 4 . . . . _
// 5 . . . . .
// 6 _ . . . .
// 7 _ _ . . .
// 8 _ _ _ . .
// 9 _ _ _ _ .
// 0 _ _ _ _ _

void printMorse(int n)
{
	switch(n)
	{
		case 1:  printf(". _ _ _ _\n"); break;
		case 2:  printf(". . _ _ _\n"); break;
		case 3:  printf(". . . _ _\n"); break;
		case 4:  printf(". . . . _\n"); break;
		case 5:  printf(". . . . .\n"); break;
		case 6:  printf("- . . . .\n"); break;
		case 7:  printf("- - . . .\n"); break;
		case 8:  printf("- - - . .\n"); break;
		case 9:  printf("- - - - .\n"); break;
		case 0:  printf("- - - - -\n"); break;
		default: break;
	}
}

int main()
{
	int number;
	do
	{
		do
		{
			printf("Enter a one-digit int: ");
			scanf("%d", &number);
		}while((number< -1) || (number >=10));
	
		printMorse(number);
		
	}while(number!= -1);
	
	system("pause");
}