#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <set>
#include <map>

using namespace std;

map<string, int> indexCounts;
set<string> orphanFiles;


void readIndices(istream& in)
{
	string line = "*";
	getline(in, line);
	while (line != "")
	{
		indexCounts[line] = 0;
		getline (in, line);
	}
}


string extractIndex(string fileSpec)
{
	unsigned pos1 = fileSpec.find_last_of('_');
	unsigned pos2 = fileSpec.find_last_of('_', pos1-1);
	string result = fileSpec.substr(0, pos2);
	// cerr << "Index of " << fileSpec << " is " << result << endl;
	return result;
}

void readFiles(istream& in)
{
	string line = "*";
	getline(in, line);
	while (in.good())
	{
		string index = extractIndex(line);
		if (indexCounts.find(index) != indexCounts.end())
		{
			indexCounts[index] = indexCounts[index] + 1;
		}
		else
		{
			orphanFiles.insert(line);
		}

		getline (in, line);
	}
}

void solve (istream& in)
{
	readIndices(in);
	readFiles(in);
	bool orphans = false;
	for (string file: orphanFiles)
	{
		cout << "F " << file << endl;
		orphans = true;
	}
	for (auto index: indexCounts)
	{
		string name = index.first;
		int count = index.second;
		if (count == 0)
		{
			cout << "I " << name << endl;
			orphans = true;
		}
	}
	if (!orphans)
		cout << "No mismatches." << endl;
}




int main (int argc, char** argv)
{
  if (argc > 1)
	{
	  ifstream in (argv[1]);
	  solve (in);
	}
  else
	solve (cin);
}