import numpy as np
import re
import sys
import pprint

f = open(sys.argv[1],"r")

lines=[]

for line in f:
    line = line.strip('\n').split(' ')
    left = [int(x) for x in line[0].split(',')]
    right = [int(x) for x in line[2].split(',')]
    lines.append([left,right])

grid = [[0]* 1000 for i in range(1000)]
#grid = [[0]* 10 for i in range(10)]


for line in lines:
    if line[0][0] == line[1][0]: #vertical
        a = min(line[0][1],line[1][1])
        b = max(line[0][1],line[1][1])
        for i in range(a, b+1):
            grid[line[0][0]][i] += 1
    elif line[0][1] == line[1][1]: #horizontal
        a = min(line[0][0],line[1][0])
        b = max(line[0][0],line[1][0])
        for i in range(a, b+1):
            grid[i][line[0][1]] += 1
    else:
        if line[0][0] > line[1][0]:
            line = [line[1], line[0]]
        for i in range(line[1][0] - line[0][0] + 1):
            v = i if line[1][1] > line[0][1] else -i
            h = i if line[1][0] > line[0][0] else -i
            grid[line[0][0] + h] [line[0][1] + v] += 1
count = 0


for i in grid:
    for j in i:
        if j > 1:
            count += 1
print(count)
#pprint.pprint(grid)