/**
* In the name of Allah
* We are nothing and you're everything
**/
#include <bits/stdc++.h>
#include "fish.h"
using namespace std;
using ll = long long;
using ull = uint64_t;
#define all(x) begin(x), end(x)
#define sz(x) (int)(x).size()
//#define int long long
const char nl = '\n';
//const int N = 2e5+1;
const ll inf = 0x3f3f3f3f3f3f3f3fll;
const int mod = 1e9+7;
long long max_weights(int N, int M, std::vector<int> X, std::vector<int> Y,
std::vector<int> W) {
ll sum = 0, sum2 = 0;
for (int i = 0; i < M; ++i) {
if (X[i] == 0)sum += W[i];
else sum2 += W[i];
}
vector<pair<int, int>> f[2];
for (int i = 0; i < M; ++i) {
f[X[i]].push_back({Y[i], W[i]});
}
vector<ll> p1(N+1), p2(N+1);
for (auto i: f[0])p1[i.first] = i.second;
for (auto i: f[1])p2[i.first] = i.second;
for (int i = 1; i < N; ++i)p1[i] += p1[i-1], p2[i] += p2[i-1];
ll res = max(sum, sum2);
if (N >= 3) {
for (int i = 0; i < N; ++i) {
res = max(res, p1[i]+p2[N-1]-p2[i]);
}
}
return res;
}
