#include <stdio.h>
#include <string.h>

      /* reverse:  reverse string s in place */
   void reverse(char s[])
   {
       int c, i, j;

       for (i = 0, j = strlen(s)-1; i < j; i++, j--) {
           c = s[i];
           s[i] = s[j];
           s[j] = c;
       }
   }
   /* itoa:  convert n to characters in s */
   void itoa(int n, char s[])
   {
       int i, sign;

       if ((sign = n) < 0)  /* record sign */
           n = -n;          /* make n positive */
       i = 0;
       do {      /* generate digits in reverse order */
           s[i++] = n % 10 + '0';  /* get next digit */
       } while ((n /= 10) > 0);    /* delete it */
       if (sign < 0)
           s[i++] = '-';
       s[i] = '\0';
       reverse(s);
   }


main()
{
int n=-44;
char nst[100];

itoa(n,nst);

printf("%s\n",nst);

}