There are m men and n monkeys (n > m). If a man have any number of monkeys. In how many ways may every monkey have a master?

Explanation

The first monkey can select his master by m ways and after that the second monkey can select his master again by m ways, so can the third and so on.
all monkeys can select master `=mxxmxxm`. .. . Upto n factors `=(m)^(n)` ways