#include <iostream>
#include <fstream>
#include <map>

using namespace std;

typedef map<string, long> word_count_map;

// Unique word counter command
int main(int argc, char* argv[])
{
	for ( int i = 1; i < argc; ++i )
	{
		ifstream source( argv[i] );
		if ( ! source )
		{
			cerr << "Could not open " << argv[i] << endl;
			return 2;
		}

		string word;
		word_count_map countof;
		while ( source >> word )
			++countof[word];

		for ( word_count_map::const_iterator itr = countof.begin(); itr != countof.end(); ++itr)
			cout << itr->first << ": " << itr->second << endl;

		source.close();
	}

	return 0;
}