Sightseeing trip#7460

Sightseeing trip

1 saniye

128 megabayt

Çok kolay

The pupils from 10-B class decided in the autumn holiday to go on an excursion to the capital. Knowing the number of boys $n$ and girls $m$ , determine how many rooms you need to book in a hotel, if each room has $k$ beds and it is forbidden to settle boys and girls together.

Giriş

One line contains three numbers $n, m, k (n, m, k \leq 100)$ n, m, k~(n, m, k \le 100).

Çıktı

Print the number of rooms to book in the hotel.

Örnekler

Örnek 1

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n, m, k (n, m, k \leq 100)