info

#include <iostream>
#include <vector>
#include <fstream>

using namespace std;

int v, st, dr, valmax = 0;
vector< vector<int> > valoriok;

void procesareTraseu(vector<int> traseu, int suma) {

	if (suma < valmax) return;
	if (suma == valmax) {
		valoriok.push_back(traseu);
	}
	if (suma > valmax) {
		valmax = suma;
		valoriok = {};
		valoriok.push_back(traseu);
	}
}

void display(vector< vector<int> > values) {

	for (int i = 0; i < values.size(); i++) {

		for (int u = 0; u < values[i].size(); u++) {

			cout << values[i][u] << " ";

		}
		cout << endl;

	}

}

void bk(vector<int> steps, int processRow, int processCol, unsigned long int totalRows, vector<vector<int>> values) {
	steps.push_back(processCol);

	if (processRow < totalRows) {

		bk(steps, processRow + 1, processCol, totalRows, values);
		bk(steps, processRow + 1, processCol + 1, totalRows, values);

	}
	else {

		int s = 0;
		for (int i = 0; i < values.size(); i++) {
			s += values[i][steps[i] - 1];
		}
		procesareTraseu(steps, s);
	}
}


int main() {

	ifstream fin("summax1.in");
	ofstream fout("summax1.out");
	unsigned long n;

	fin >> v >> n >> st >> dr;

	vector< vector<int> > values;

	for (unsigned int i = 1; i <= n; i++) {
		values.push_back({});
		for (unsigned int u = 0; u < i; u++) {
			int temp;
			fin >> temp;
			values[values.size() - 1].push_back(temp);
		}
	}

	bk({}, 1, 1, n, values);

	//display(values);

	/*for (int i = 0; i < valoriok.size(); i++) {
		for (int u = 0; u < valoriok[i].size(); u++) {
			cout << valoriok[i][u] << " ";
		}
		cout << endl;
	}*/

	if (v == 1) fout << valoriok.size();
	else {
		for (int i = st; i <= dr; i++) {
			for (int u = 0; u < valoriok[i].size(); u++) {
				fout << valoriok[i][u] << " ";
			}
			fout << endl;
		}
	}

	fin.close();
	fout.close();

	return 0;

}