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

extern const char *__progname;

static int xsize;
static int ysize;

static void usage(void)
{
 fprintf(stderr,"Usage: %s xsize ysize\n",__progname);
 exit(1);
}

static void unxeof(void)
{
 fprintf(stderr,"%s: unexpected EOF\n",__progname);
 exit(1);
}

static void rgba4444(unsigned short int p)
{
 putchar(0x11*((p>>8)&15));
 putchar(0x11*((p>>4)&15));
 putchar(0x11*( p    &15));
}

int main(int, char **);
int main(int ac, char **av)
{
 int x;
 int y;
 int c1;
 int c2;

 if (ac != 3) usage();
 xsize = atoi(av[1]);
 ysize = atoi(av[2]);
 if ((xsize < 1) || (ysize < 1)) usage();
 printf("P6\n%d %d\n255\n",xsize,ysize);
 for (y=ysize;y>0;y--)
  { for (x=xsize;x>0;x--)
     { c1 = getchar();
       if (c1 == EOF) unxeof();
       c2 = getchar();
       if (c2 == EOF) unxeof();
       rgba4444((c2*256)+c1);
     }
  }
 return(0);
}