#include <iostream>
#include <cstdio>
#include <cstring>

using namespace std;

int lg;
char vars[105], type[105];

int main() {
    #ifndef ONLINE_JUDGE
    freopen("input.txt","r",stdin);
    #endif // ONLINE_JUDGE

    while(cin >> type) {
        if(strcmp(type, "unsigned") == 0) {
            cin >> type;
        }

        cin >> vars;

        lg = strlen(vars);

        int nr = 0, total = 0, pretot = 1;

        for(int i = 0; i < lg; ++i) {
            if(vars[i] == ']') {
                pretot *= nr;
                nr = 0;
            }

            if(vars[i] >= '0' && vars[i] <= '9') {
                nr = nr * 10 + vars[i] - '0';
            }

            if(vars[i] == ',') {
                total += pretot;
                pretot = 1;
            }
        }

        total += pretot;

        if(strcmp(type, "short") == 0) total <<= 1;
        if(strcmp(type, "int") == 0) total <<= 2;
        cout << total << '\n';
    }

    return 0;
}