#!/usr/bin/env python3

import sys
import re

def parse(line):
    groups = re.compile(r"(?P<x1>\d+),(?P<y1>\d+) -> (?P<x2>\d+),(?P<y2>\d+)").search(line)
    return groups

def calc(x1, y1, x2, y2, mem):
    if x1 == x2:
        if y1 > y2:
            y = y2
            y2 = y1
            y1 = y
        for y in range(y1, y2+1):
            if (x1, y) not in mem:
                mem[(x1, y)] = 1
            else:
                mem[(x1, y)] += 1
    elif y1 == y2:
        if x1 > x2:
            x = x2
            x2 = x1
            x1 = x
        for x in range(x1, x2+1):
            if (x, y1) not in mem:
                mem[(x, y1)] = 1
            else:
                mem[(x, y1)] += 1


def calc2(x1, y1, x2, y2):
    if x1 != x2 and y1 != y2:
        if x1 > x2:
            dif = x1-x2+1
            m1 = -1
        else:
            dif = x2-x1+1
            m1 = 1
        if y1 > y2:
            m2 = -1
        else:
            m2 = 1
        for i in range(dif):
            if (x1+m1*i, y1+m2*i) not in memo2:
                memo2[(x1+m1*i, y1+m2*i)] = 1
            else:
                memo2[(x1+m1*i, y1+m2*i)] += 1


if __name__ == '__main__':
    lines = open(sys.argv[1]).readlines()

    coords = [tuple(map(int,parse(line).groups())) for line in lines]

    # challenge 1

    memo = {}
    for c in coords:
        calc(*c,memo)

    res1 = 0
    for v in memo.values():
        if v > 1:
            res1 += 1

    print("challenge 1:" + "\n" + str(res1) + "\n")

    # challenge 2

    memo2 = {}
    for c in coords:
        calc(*c,memo2)
        calc2(*c)

    res2 = 0
    for v in memo2.values():
        if v > 1:
            res2 += 1
    print("challenge 2:" + "\n" + str(res2) + "\n")