Illegitimate children at nth generation?

A hypothetical world have 50 males and 50 females as their 1st generation population. In each generation, 10 % males and 10 % females are cheats and cheat on with their partners with each producing 1 extra offspring with the other partner. In other cases, a couple have 2 chí£dren only. What can be maximum no. Of illigetimate population at nth generation.? Explain p£€ä߀.