#include<fstream>
using namespace std;



int main()
{
	int N, M, B;
	ifstream inp;
	inp.open("subsetselection.in");

	inp >> N >> M >> B;
	int **table = new int*[N];

	for (int i = 0; i < N; i++)
	{
		table[i] = new int[M];
		for (int j = 0; j < M; j++)
		{
			inp >> table[i][j];
		}
	}


	inp.close();
	int best = 0;
	int Row = 0;
	for (int i = 1; i < N; i++) {
		int thatRow = 0;
		for (int j = 0; j < M ; j++)
		{
			thatRow += (table[0][j] + table[i][j])*(table[0][j] + table[i][j]);
		}
		if (thatRow > best) {
			best = thatRow;
			Row = i;
		}
	}

	ofstream out;
	out.open("subsetselection.out");
	out << 2 << endl;
	out << 1 << endl;
	out << Row+1 << endl;
	out.close();


	return 0;B
}