#include<iostream>
#include<ctype.h>
#include<stdio.h>
using namespace std;

int main()
{
	freopen("a.in", "r", stdin);
	freopen("a.out", "w", stdout);
	char type[20], name[20],c;
	int n,p,s=0,nr,exp;
	while (cin >> type)
	{
		if (type[0] == 'u'&&type[1] == 'n')
			cin >> type;

		if (type[0] == 'c') n = 1;
		else
		if (type[0] == 's') n = 2;
		else
			n = 4;

		p = 1; s = 0; nr = 0; exp = 1;
		while (scanf("%c",&c))
		{
			if (c != ',')
			{
				p = 1;
				if (c == '[')
				{
					while (c != ','&&c != '\n')
					{
						if (c == '[') { nr = 0; exp = 1; }
						while (scanf("%c", &c) && c >= '0'&&c <= '9')
						{
							nr = nr*exp + (int)(c - '0'); exp *= 10;
						}
						if (c == ']')
							p = p*nr;
					}
					s += p;
					if (c == '\n') break;
				}

			}
			else
			if (c != ' ')
				s++;
			if (c == '\n'){
				s++; break;
			}
		}
		cout << s*n << "\n";
	}
}