There is no limit on the amount of days she can spend somewhere?

In question one she only has to spend at least two days per city. That means in country x she could do 2 cities 4 days each; 2 cities one 3 days and one 5 days and vice versa; or she could do 3 cities 2, days, 2 days, 4 days; or 4 cities 2 days each; and lastly one city 6 days and the other 2 days. That still leaves 6 days to hangout in at least one city in each country Y and Z. She could spend 2 days each in two cities in Y and 2 days in one city in Z, and vice versa. She could spend 3 days in one city in Y and 3 days in one city in Z. None of these rules have been broken, or am I mistaken?