#include <iostream>
#include<fstream>
#include<cassert>
using namespace std;
int n,a,i,sum,s,k,j,x;
int main()
{
    ifstream f("cowfood.in");
    ofstream g("cowfood.out");
    f>>n>>s>>k;
    for(i=1;i<=n;i++)
    {
        sum=0;
        for(j=1;j<=k;j++)
        {
            f>>x;
            sum+=x;
        }
        assert(sum<=s);
    }
    return 0;
}