#include <stdio.h>
#include <stdlib.h>
#define MAX_LENGTH 165

int main(void) {
    char buf[MAX_LENGTH];
    int color_num, sum, max_r, max_g, max_b;

    sum = 0;
    while (fgets(buf, MAX_LENGTH, stdin)) {
        char* c = buf + 5;  // +5 skips the "Game "
        for (; *c != ':'; c++);

        max_r = max_g = max_b = 0;
        while (*c != '\n') {
            color_num = strtol(c + 2, &c, 10);  // +2 skips ": ", ", " or "; "
            c++;  // +1 skips the space
            max_r = (*c == 'r' && color_num > max_r) ? color_num : max_r;
            max_g = (*c == 'g' && color_num > max_g) ? color_num : max_g;
            max_b = (*c == 'b' && color_num > max_b) ? color_num : max_b;
            for (; *c >= 'a' && *c <= 'z'; c++);
        }
        sum += max_r * max_g * max_b;
    }
    printf("%d\n", sum);
    return 0;
}