#!/usr/bin/env python
# -*- coding: utf-8 -*-

import sys

def RGBToHTMLColor(rgb_tuple):
    """ convert an (R, G, B) tuple to #RRGGBB """
    hexcolor = '#%02x%02x%02x' % rgb_tuple
    # that's it! '%02x' means zero-padded, 2-digit hex values
    return hexcolor

def HTMLColorToRGB(colorstring):
    """ convert #RRGGBB to an (R, G, B) tuple """
    colorstring = colorstring.strip()
    if colorstring[0] == '#': colorstring = colorstring[1:]
    if len(colorstring) != 6:
        raise ValueError, "input #%s is not in #RRGGBB format" % colorstring
    r, g, b = colorstring[:2], colorstring[2:4], colorstring[4:]
    r, g, b = [int(n, 16) for n in (r, g, b)]
    return (r, g, b)


if __name__ == "__main__":
    r, g, b = HTMLColorToRGB(sys.argv[1])
    print RGBToHTMLColor((255 -r, 255-g, 255-b))