#include<iostream>
#include<string>
#include<vector>
using namespace std;
int main() {
	int a;
	cin >> a;
		cout << (10 + a / 100) << ":";
		int min = a % 100 / 100.0 * 60;
		if (min < 10)
			cout << "0" << min << endl;
		else
			cout << min << endl;
	return 0;
}