public static List<int> acmTeam(List<string> topic)
{
	var teamLen = topic.Count();
	var topicLen = topic.First().Length;
	
	var maxKnown = 0;
	var maxTeams = 0;
	
	for (int i = 0; i < teamLen; ++i)
	{
		var t1 = topic[i];
		for (int j = i + 1; j < teamLen; ++j)
		{
			int know = 0;
			var t2 = topic[j];
			for (int k = 0; k < topicLen; ++k)
			{
				if (t1[k] == '1' || t2[k] == '1')
					++know;
			}
			
			if (know == maxKnown)
				++maxTeams;
			else if (know > maxKnown)
			{
				maxKnown = know;
				maxTeams = 1;
			}
		}
	}
	
	return new List<int>() {maxKnown, maxTeams};
}