#!/usr/bin/python
from math import *

output = "<svg width='1000' height='700' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink'> <g stroke='black' stroke-width='1' stroke-linecap='round'>\n"

def drawline(x1, y1, x2, y2):
	global output
	output += '<line x1="' + str(x1) + '" y1="' + str(y1) + '" x2="' + str(x2) + '" y2="' + str(y2) + '" />\n'

for height in range(100, 500, 10):
	drawline(100, height, 300, 200 + height/5)

drawline(100, 50, 100, 550)
drawline(300, 50, 300, 550)
output +='</g></svg>\n'
open("ladder.svg", "w").write(output)