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

char *tostring(int n) {
  int i, j;
  char num1[11], *num2 = malloc(11);

  for (i=n, j=0; ; j++) {
    num1[j] = (i%10)+48;
    if (i<10) {
      num1[j+1] = (i%10)+48;
      num1[j+2] = 123;
      break;
    }
    i=i/10;
  }

  for (i=0; i!=j+2; i++) {
    printf("%d\n", num1[j-i]);
    num2[i] = num1[j-i];
  }
  return num2;
}

int main(int argc, char *argv[]) {
  if (argc < 2) return 1;

  printf("number: %s\n", tostring(atoi(argv[1])));

  return 0;
}