main.cpp

#include <iostream>
#include <map>
#include <string>

using namespace std;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int n;
    if (!(cin >> n)) {
        return 0;
    }
    map<string, long long> stock;
    long long turnover = 0;
    int first_error = 0;
    for (int line_no = 1; line_no <= n; ++line_no) {
        string name, op;
        long long qty, price;
        cin >> name >> op >> qty >> price;
        long long current = stock[name];
        if (op == "IN") {
            stock[name] = current + qty;
            continue;
        }
        if (qty > current) {
            if (first_error == 0) {
                first_error = line_no;
            }
            continue;
        }
        stock[name] = current - qty;
        turnover += qty * price;
    }
    cout << "turnover=" << turnover << "\n";
    cout << "first_error=" << first_error << "\n";
    cout << "stock=";
    bool first = true;
    for (const auto& entry : stock) {
        if (entry.second <= 0) {
            continue;
        }
        if (!first) {
            cout << ',';
        }
        first = false;
        cout << entry.first << ':' << entry.second;
    }
    if (first) {
        cout << "EMPTY";
    }
    cout << "\n";
    return 0;
}