#include <iostream>
#include <fstream>
#include <string>

using namespace std;

int main(void) {
    ifstream fin("personaltax.in");
    ofstream fout("personaltax.out");
    int m;
    fin >> m;

    double** arr = new double*[m+1];
    for(int i = 0; i <= m; ++i) 
        arr[i] = new double[13];

    string info, date;
    int num;
    float val;

    while(1) {
        fin >> info;
        switch(info[0]) {
            case 'P':
                fin >> num >> date >> val;
                arr[num][stoi(date)] += val;
                continue;
            case 'I':
                fin >> num >> date >> val;
                if(val <= 4000)
                    val -= 800;
                else
                    val *= 0.8;
                
                if(val > 50000){
                    arr[num][0] += (val - 50000) * 0.4;
                    val = 50000;
                }
                if(20000 < val && val <= 50000){
                    arr[num][0] += (val - 20000) * 0.3;
                    val = 20000;
                }
                if(0 < val && val <= 20000){
                    arr[num][0] += val * 0.2;
                }
                continue;
            default:
                break;
        }
        break;
    }
    
    int cur;
    for(int i = 1; i <= m; ++i) {
        for(int j = 1; j <= 12; ++j) {
            cur = arr[i][j] - 800;
            if(cur > 100000){
                arr[i][0] += (cur - 100000) * 0.45;
                cur = 100000;
            }
            if(80000 < cur && cur <= 100000){
                arr[i][0] += (cur - 80000) * 0.4;
                cur = 80000;
            }
            if(60000 < cur && cur <= 80000){
                arr[i][0] += (cur - 60000) * 0.35;
                cur = 60000;
            }
            if(40000 < cur && cur <= 60000){
                arr[i][0] += (cur - 40000) * 0.3;
                cur = 40000;
            }
            if(20000 < cur && cur <= 40000){
                arr[i][0] += (cur - 20000) * 0.25;
                cur = 20000;
            }
            if(5000 < cur && cur <= 20000){
                arr[i][0] += (cur - 5000) * 0.2;
                cur = 5000;
            }
            if(2000 < cur && cur <= 5000){
                arr[i][0] += (cur - 2000) * 0.15;
                cur = 2000;
            }
            if(500 < cur && cur <= 2000){
                arr[i][0] += (cur - 500) * 0.1;
                cur = 500;
            }
            if(1 <= cur && cur <= 500){
                arr[i][0] += cur * 0.05;
            }
        }
    }
    double sum = 0;
    for(int i = 1; i <= m; ++i) {
        sum += arr[i][0];
    }
    fout.flags(ios::fixed);
    fout.precision(2);
    fout << sum;

    for(int i = 0; i <= m; ++i) 
        delete []arr[i];
    delete []arr;
    return 0;
}