/*
 * signed.c
 */
#include <stdio.h>

int main(void)
{
  printf(" The number -12 is %+d\n", -12); // tell printf to include sign 
  printf(" The number 12 is %+d\n", 12); // tell printf to include sign 
  printf(" The number 12.67 is %+f\n", 12.67); // tell printf to include sign 
}