#include <iostream>
#include <fstream>
#include <map>
#include <vector>

using namespace std;

ifstream in("reteta2.in");
ofstream out("reteta2.out");

map<string, int> mp;
string s;
int p;
int tot;

void value() {

    string S = "";
    while(p < s.size() && (s[p] >= 'a' && s[p] <= 'z'))
        S = S + s[p++];
    int r = 0;
    while(p < s.size() && isdigit(s[p]))
        r = r*10 + s[p++] - '0';
    mp[S] += r;

}

void expr() {

    while(p < s.size()) {

        if(s[p] == ')') {
            p++;
            int nr = 0;
            while(p < s.size() && isdigit(s[p]))
                nr = nr*10 + s[p++] - '0';
            tot += nr;
            return;
        }

        if(s[p] == '(') {
            p++;
            expr();
            continue;
        }

        value();

    }

}

int main() {

    string t;
    getline(in, t);
    for(int i = 0; i < t.size(); i++) {
        if(t[i] != ' ')
            s += t[i];
    }

    expr();

    out << tot << '\n';
    for(map<string, int>::iterator it = mp.begin(); it != mp.end(); it++)
        out << it->first << " " << it->second << '\n';

    return 0;
}