C++ :

#include<iostream>
#include<cstdio>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<string>
#include<cstdlib>
#include<queue>
#include<vector>
#define INF 0x3f3f3f3f
#define PI acos(-1.0)
#define N 10001
#define MOD 2520
#define E 1e-12
using namespace std;
int m,n;
int w[N],c[N],num[N],f[N];
void MultiplePack(int cost,int weight,int num)
{
    for(int j=m;j>=0;j--)
        for(int k=0;k<=num;k++)
            if(j-k*weight>=0)
                f[j]=max(f[j],f[j-k*weight]+k*cost);
}
int main()
{
    cin>>n>>m;
    for(int i=1;i<=n;i++)
        cin>>w[i]>>c[i]>>num[i];
    for(int i=1;i<=n;i++)
        MultiplePack(c[i],w[i],num[i]);

    cout<<f[m]<<endl;
    return 0;
}