UVa 12403 - Save Setu

// UVa 12403 - Save Setu

#include <iostream>
using namespace std;

#define integer unsigned long long

int main() {
	int n;
	integer money = 0;
	for (cin >> n; n; n--) {
		string op;
		cin >> op;
		if (op[0] == 'r')
			cout << money << endl;
		else {
			integer donation;
			cin >> donation;
			money += donation;
		}
	}
	return 0;
}