#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,m,i,j,b[100],k,g;
	cin>>n>>m>>k;
	int a[n][m];
	for(i=0;i<n;i++){
		for(j=0;j<m;j++){
			cin>>a[i][j];
			b[i]+=a[i][j];		
		}
	}
	for(i=0;i<n;i++){
		if(b[i]>k)
			g++;	
	}
	cout<<g;
return 0;

}

/**************************************************************
	Problem: 2026
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:7 ms
	Memory:2072 kb
****************************************************************/