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

int l1_read( char *b) {
  int res;
  res=read(0,b,1);
  //printf("READER GOT %d (%c)\n",*b,*b);
  return(res);
}


int l1_write(char b) {
  //  printf("l1_write sending %c\n",b);
  return(write(1,&b,1));
}