#include <bits/stdc++.h>

using namespace std;

struct action {
    int v;
    int c;
};

int main() {
    //输入+输出重定向
    //freopen("../x.in", "r", stdin);
    //freopen("../x.out", "w", stdout);
    stack<action> s;

    int v0, c0, n;
    string cmd;
    int v, c;
    action a;

    cin >> v0 >> c0 >> n;
    for (int i = 0; i < n; ++i) {
        cin >> cmd;
        if (cmd == "P") {
            cin >> v >> c;
            a.c = c;
            a.v = v;
            s.push(a);
            //计算现在的质量和浓度
            v0 += a.v;
            c0 += a.c;
            //输出计算完的结果
            cout << v0 << " " << setiosflags(ios::fixed) << setprecision(5) << 100*c0 * 1.0 / v0 << endl;
        }
        if (cmd == "Z") {
            if (!s.empty()) {
                a = s.top();
                //计算现在的质量和浓度
                v0 -= a.v;
                c0 -= a.c;
                //输出计算完的结果
                cout << v0 << " " << setiosflags(ios::fixed) << setprecision(5) << 100*c0 * 1.0 / v0 << endl;
                s.pop();
            }
        }
    }
    //关闭文件
    //fclose(stdin);
    //fclose(stdout);
    return 0;
}