#!/usr/bin/env python3
# -*- coding: utf-8 -*-

power_sum = 0

input_file = open("input.txt", "r")

for line in input_file:
    line = line.replace("Game ", "").strip()
    games = line.split(":")[1].split(";")
    red_max, green_max, blue_max = 1, 1, 1
    for game in games:
        game = game.split(",")
        for grab in game:
            grab = grab.split()
            if grab[1] == "red" and int(grab[0]) > red_max:
                red_max = int(grab[0])
            if grab[1] == "green" and int(grab[0]) > green_max:
                green_max = int(grab[0])
            if grab[1] == "blue" and int(grab[0]) > blue_max:
                blue_max = int(grab[0])
    power_sum += red_max * green_max * blue_max

print(power_sum)

input_file.close()