#!/usr/bin/env python3

lines = (x.strip() for x in open("input.txt"))
queue = [(0, 0, 0)]
cnt = 0
visited = set()
cubes = set()

for line in lines:
    x, y, z = map(int, line.split(","))
    cubes.add((x, y, z))

while queue:
    x, y, z = queue.pop(0)
    for xn, yn, zn in ((1, 0, 0), (0, 1, 0), (0, 0, 1), (-1, 0, 0), (0, -1, 0), (0, 0, -1)):
        neighbor = (x+xn, y+yn, z+zn)
        if neighbor in cubes:
            cnt += 1
        elif neighbor not in visited and -2 <= neighbor[0] < 22 and -2 <= neighbor[1] < 22 and -2 <= neighbor[2] < 22:
            queue.append(neighbor)
            visited.add(neighbor)

print(cnt)