#include <iostream>

using namespace std;

int main()
{
	int hour, wage;

	cout << "Number of working hours = ";
	cin >> hour;

	if (hour <= 40)
		wage = 60 * hour;
	else if (hour <=65)
		wage = 60 * 40 + 90 * (hour - 40);
	else
		wage = 60 * 40 + 90 * 25 + 120 * (hour - 65);

	cout << "The wage is equal to " << wage << endl;

	return 0;
}