#!/usr/bin/env python

import sys

def mkRGB (px):
   r = ord (px[1]) & 0xf8
   g = (ord (px[1]) & 0x07) << 5
   g += (ord (px[0]) & 0xe0) >> 3
   b = (ord (px[0]) & 0x1f) << 3

   r = r + (r >> 5)
   g = g + (g >> 6)
   b = b + (b >> 5)

   return chr(r) + chr(g) + chr(b)


sys.argv.append ('-')
sys.argv.append ('-')

if sys.argv[1] != '-':
   input = file (sys.argv[1])
else:
   input = sys.stdin

if sys.argv[2] != '-':
   output = file (sys.argv[2], "w")
else:
   output = sys.stdout

imagedata = input.read () [:800 * 480 * 2]

conv = "".join ([mkRGB (z) for z in zip (imagedata[::2], imagedata[1::2])])
output.write ("P6 800 480 255\n")
output.write (conv)