#include <bits/stdc++.h> using namespace std; using ll = long long; const int N = 1e5+10, S = 2e4+10; ll dp[S]; pair<ll, ll> a[N*32]; int main(){ ios_base::sync_with_stdio(false); cin.tie(nullptr); int s, n; cin >> s >> n; int sz = 0; for(int i = 1; i <= n; ++i){ ll v, w, k; cin >> v >> w >> k; for(int j = 0; k > 0; ++j){ a[sz++] = {w*min(k, 1LL<<j), v*min(k, 1LL<<j)}; k -= min(k, 1LL<<j); } } for(int j = 0; j < sz; ++j){ auto &[w, v] = a[j]; for(int i = s; i >= w; --i){ dp[i] = max(dp[i], dp[i-w] + v); } } cout << dp[s] << '\n'; }