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

int main()
{
   int selection=1;
   
   while(selection >= 1 && selection <4)
   {
       printf("Please select an option from the following menu:\n");
       printf("1) Display the vowels in an input string.\n");
       printf("2) Determine if the ceiling of the square root of an integer is odd or even.\n");
       printf("3) Display the month, name, and days in that month.\n");
       printf("4) Exit.\n\n");
    
       scanf(" ", &selection);
       switch(selection)
       {	
              case '1':
              printf("...\n");
  	          break;
       	      case '2':
              printf(".....\n");
 		      break;			
   	          case '3':
              printf("......\n");
              break;
              case '4':
              printf("........\n");
   	          break;			
              default:		
	      printf("Please retry using 1, 2, 3, or 4.\n");
	    } 
   }        
    system("PAUSE");
    return 0;

}