static range update

#include "bits/stdc++.h"

using namespace std;

int main () {
	 int n, q;
	 cin >> n >> q;
	 int a[n + 1];
	 for (int i = 0; i <= n; ++i) a[i] = 0;
	 for (int i = 1; i <= q; ++i) {
		 int l, r, x;
		 cin >> l >> r >> x;
		 a[l] += x;
		 if (r + 1 <= n) {
			 a[r + 1] -= x;
		 }
	 }
	 int sum = 0;
	 int pref[n + 1];
	 for (int i = 1; i <= n; ++i) {
		 sum += a[i];
		 pref[i] = sum;
	 }
	 for (int i = 1; i <= n; ++i) cout << pref[i] << ' ';
}