#define _USE_MATH_DEFINES

#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <cmath>
#include <algorithm>
#include <vector>
#include <queue>
#include <map>

using namespace std;

typedef pair<long long int, long long int> P;
long long int INF = 1e18;

long long int DP[20000] = {};

int main()
{
	long long int N, W;
	cin >> N >> W;
	
	vector<P> vec;
	
	for(int i = 0; i < N; i++){
		long long int v, w, m;
		cin >> v >> w >> m;
		P p;
		for(int j = 1; j <= m; j *= 2){
			p.first = v * j;
			p.second = w * j;
			vec.push_back(p);
			m -= j;
		}
		p.first = v * m;
		p.second = w * m;
		vec.push_back(p);
	}
	
	for(int i = 0; i < vec.size(); i++){
		for(int j = W; j >= vec[i].second; j--){
			DP[j] = max(DP[j], DP[j - vec[i].second] + vec[i].first);
		}
	}
	
	cout << DP[W] << endl;
	
	return 0;
}
