#include <bits/stdc++.h>
using namespace std;
using T = int;
struct XAB{
    int x;
    int a;
    int b;
    XAB(int _x=0, int _a=0, int _b=0):x(_x), a(_a), b(_b){}
};

struct BIT{
    vector<T> bit;
    BIT(int n) : bit(n, 0){}
    T sum(int j) const {
        assert(j < (int)bit.size());
        T s = 0;
        for (; j >= 0; j = (j & (j + 1)) - 1) s += bit[j];
        return s;
    }
    T total() const { return sum(bit.size() - 1);}
    T count_larger(int k) const { return total() - sum(k - 1);}
    void add(int k, T a) {for (; k < bit.size(); k |= k + 1) bit[k] += a;}
};

vector<XAB> ignore_3complete(const vector<XAB> & xabs){
    vector<XAB> result;
    for (auto xab : xabs){
        if (xab.x != 3) result.emplace_back(xab);
    }
    return result;
}
int count_2complete(const vector<XAB> & xabs){
    int c = 0;
    for (auto &xab : xabs) if (xab.x == 2) ++c;
    return c;
}

int count3(const vector<BIT> & B, int M){
    int solved0 = B[0].total();
    int solved1 = B[1].total();
    int solved2 = B[2].total();
    int solved3 = B[3].total();
    int target = M - solved2 - solved3;
    if (target <= 0) return solved3;
    if (target > solved1) return 1e9;
    int OK = 0;
    int NG = 100001;
    while (NG > (OK + 1)){
        int mid = (OK + NG)/2;
        if (B[1].count_larger(mid) >= target){
            OK = mid;
        }else{
            NG = mid;
        }
    }
    return solved3 + B[2].count_larger(OK);
}

void update_B(const vector<vector<vector<int>>> & data, vector<BIT> & B, int SA){
    for (int i = 2; i >= 0; --i){
        for (auto b : data[i][SA]){
            B[i + 1].add(b, -1);
            B[i].add(b, 1);
        }
    }
}

int solve(vector<XAB> & xabs, int M){
    if (M <= 0) return 0;
    int n_2complete = count_2complete(xabs);
    if (n_2complete >= M) return 0;
    vector<vector<vector<int>>> data(3, vector<vector<int>>(100005));
    vector<BIT> B(4, BIT(100002));
    for (auto &xab : xabs){
        data[xab.x][xab.a].push_back(xab.b);
        B[xab.x + 1].add(xab.b, 1);
    }
    int record = 1e9;
    for (int SA = 0; SA <= 100001; ++SA){
        int score = count3(B, M);
        record = min(record, score);
        update_B(data, B, SA);
    }
    return record;
}

int main() {
    cin.tie(0);
    ios::sync_with_stdio(false);
    int N, M;
    cin >> N >> M;
    vector<XAB> xabs(N);
    for (auto & xab : xabs) cin >> xab.x >> xab.a >> xab.b;
    auto xabs012 = ignore_3complete(xabs);
    int n_3complete = N - xabs012.size();
    cout << solve(xabs012, M - n_3complete) + n_3complete << endl;
    return 0;
}