#include <stdio.h>

int print_n_strings(char *firstStr,...)
{
  char **pParam;
  int counter = 0;
  
  pParam = &firstStr;
  while (*pParam) 
  {
    puts(*pParam);
    pParam = pParam + 1;
    counter = counter + 1;
  }
  return counter;
}

void main(void)
{
  print_n_strings("abc","def","ghi",1);
}