#include <bits/stdc++.h>   using namespace std;   int main() {     ios::sync_with_stdio(0);     long long int n, s, p, q;     char d;     map<long long int, long long int> p1, p2;     cin >> n >> s;     for (long long int i = 1; i <= n; i++) {       cin >> d >> p >> q;       if (d ==  B )         p1[p] += q;       else if (d ==  S )         p2[p] += q;     }     map<long long int, long long int>::reverse_iterator rit;     map<long long int, long long int>::iterator it;     vector<pair<long long int, long long int> > p3;     long long int cnt = 0;     for (it = p2.begin(); it != p2.end(); it++) {       if (cnt < s) {         p3.push_back(make_pair(it->first, it->second));         cnt++;       }     }     cnt = 0;     reverse(p3.begin(), p3.end());     vector<pair<long long int, long long int> >::iterator it2;     for (it2 = p3.begin(); it2 != p3.end(); ++it2) {       if (cnt < s) {         cout <<  S               <<     << it2->first <<     << it2->second << endl;         cnt++;       }     }     cnt = 0;     for (rit = p1.rbegin(); rit != p1.rend(); ++rit) {       if (cnt < s) {         cout <<  B               <<     << rit->first <<     << rit->second << endl;         cnt++;       }     }     return 0;   }   