#include <iostream>
#include <string>
#include <vector>
using namespace std;

void write(vector<int>&v, string s) {
	int seconds = 0;
	int pos;
	
	for (int i = 0; i < s.length(); i++) if (s[i] == ':') pos = i;
	
	seconds += stoi(s.substr(0, pos)) * 60;
	seconds += stoi(s.substr(pos + 1));
	
	if (seconds <= 1200) {
		v[0]++;
	} else if (seconds <= 2400) {
		v[1]++;
	} else {
		v[2]++;
	}
	
}

int main() {
	int n;
	cin >> n;
	
	vector <int> a(3, 0);
	vector <int> b(3, 0);
	
	for (int i = 0; i < n; i++) {
		int cm;
		string s;
		
		cin >> cm;
		cin >> s;
		
		if (cm == 1) write(a, s);
		else write(b, s);
		
	}
	
	for (int i = 0; i < 3; i++) {
		cout << a[i] << ':' << b[i] << "\n";
	}
	return 0;
}