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#!/usr/bin/env python3
import sys, math
import matplotlib.pyplot as plot
#plot.xkcd()
fig = plot.figure(figsize = (3 * 2, 4 * 2))
data = sys.stdin.read().split('\n')
graphs = {}
points = set()
values = set()
for line in data:
if line == '':
continue
while ' ' in line:
line = line.replace(' ', ' ')
[label, point, time] = line.split(' ')
[_, point] = point.split('<<')
point = int(point)
time = float(time) / 10
if label not in graphs:
graphs[label] = {}
graphs[label][point] = time
points.add(point)
values.add(time)
points = sorted(list(points))
values = sorted(list(values))
for label in sorted(graphs.keys()):
graph_values = list(map(lambda x : x[1], sorted(graphs[label].items(), key = lambda x : x[0])))
plot.plot(points, graph_values, label = label)
plot.xticks(points, map(str, points))
fig.suptitle('pipe(7) versus unix(7)')
plot.ylabel('millisecond')
plot.xlabel('log₂(n)')
plot.grid(axis = 'x', linestyle = ' ')
plot.legend(loc = 'upper left')
plot.xlim((min(points), max(points)))
plot.ylim((min(values) * 1.05, max(values) * 1.05))
plot.grid(True)
plot.savefig('graph.svg', transparent = False, format = 'svg')
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