#include <algorithm>
#include <cstring>
#include <iostream>
#include <string>
using namespace std;

int main() {
	const auto bar = 13U;
	const char multiplicand[] = "0, ";
	const auto length = strlen(multiplicand);
	const string foo(&*generate_n(string(bar * length, '\0').begin(), bar * length, [&]() {
		static auto i = 0U;
		return multiplicand[i++ % length];
	}) - bar * length);

	cout << foo;
}