#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <memory.h>
#include <math.h>
#include <assert.h>
#include <stack>
#include <queue>
#include <map>
#include <set>
#include <algorithm>
#include <string>
#include <functional>
#include <vector>
#include <numeric>
#include <deque>
#include <utility>
#include <bitset>
#include <limits.h>
#include <iostream>
using namespace std;
typedef long long ll;
typedef unsigned long long llu;
typedef double lf;
typedef unsigned int uint;
typedef long double llf;
typedef pair<int, int> pii;
const int N_ = 4105;
const int M_ = 20005;
const int MAXW = 4105;
const int MAXD = 19999;
vector<int> events[MAXD+100000];
vector<pii> queries[MAXD+100000];
int answer[M_];
int S[N_], C[N_];
int N, P;
int M;
int stkF[N_][MAXW], topF;
int stkR[N_][MAXW], whR[N_], topR;
int main() {
scanf("%d%d", &N, &P);
for(int i = 1; i <= N; i++) {
int d; scanf("%d%d%d", &C[i], &S[i], &d);
events[d].push_back(i);
events[d + P].push_back(-i);
}
return 0;
}
