#!/usr/bin/env python

import re
import argparse

SIZE_X = 50
SIZE_Y = 6

RE_RECT = re.compile(r'rect (\d+)x(\d+)$')
RE_ROTATE_C = re.compile(r'rotate column x=(\d+) by (\d+)$')
RE_ROTATE_R = re.compile(r'rotate row y=(\d+) by (\d+)$')

def load_file(filename):
    with open(filename) as f:
        for line in f:
            yield line.strip()

def do_rect(display, size_x, size_y):
    for x in range(size_x):
        for y in range(size_y):
            display[y][x] = 'X'

def do_rotate_row(display, y, p):
    p = SIZE_X - p
    display[y] = display[y][p:] + display[y][:p]

def do_rotate_column(display, x, p):
    data = [display[i][x] for i in range(SIZE_Y)]
    p = SIZE_Y - p
    data = data[p:] + data[:p]
    for i in range(SIZE_Y):
        display[i][x] = data[i]

def main(args):
    DISPLAY = []
    for y in range(SIZE_Y):
        line = []
        for x in range(SIZE_X):
            line.append(" ")
        DISPLAY.append(line)

    for LINE in load_file(args.input):
        match = RE_RECT.search(LINE)
        if match:
            do_rect(DISPLAY, int(match.group(1)), int(match.group(2)))
            continue
        match = RE_ROTATE_C.search(LINE)
        if match:
            do_rotate_column(DISPLAY, int(match.group(1)), int(match.group(2)))    
            continue
        match = RE_ROTATE_R.search(LINE)
        if match:
            do_rotate_row(DISPLAY, int(match.group(1)), int(match.group(2)))
            continue
        raise Exception("unkown instruction: {}".format(LINE))

    for y in range(SIZE_Y):
        print("".join(DISPLAY[y]))
 
if __name__ == "__main__":
    parser = argparse.ArgumentParser(description='AdventOfCode 2016 Day 01')
    parser.add_argument('--input', '-i', action='store',  required=True, help='input file')
    args = parser.parse_args()

    main(args)