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

/* asks the user to enter a number and prints out the corresponding
 * number of asterisks */
int main(void)
{
    int i = 0, value = 1, result = 1;

    /* we want to keep looping until the user enters either 0 or a
     * negative number */
    while(value > 0)
    {
        printf ("Enter a number: ");

        /* grab the input from the user */
        result = scanf("%d", &value);
        fflush(stdin);

        if(!result)
        {
            /* user must enter a numeric value */
            printf("Value must be numeric");
            continue;
        }

        for (i = 0; i < value; i++)
        {
            printf("*");
        }

        printf("\n");
    }
}