Is the equation balanced?

Formulas such as $\text{Ca(OH)}_2$ and $\text{Al}_2(\text{SO}_4)_3$ have brackets. You will make the program count atoms through a bracket, check whether an equation is balanced, and find the one equation in a list that is not.

The idea. The number after a bracket multiplies every atom inside the bracket. The number in front of a formula multiplies the whole formula.

Your tasks.

1. In count_atoms, add n times the number after the bracket for each atom inside it.
2. In balanced, return True when both sides have the same counts.
3. Find wrong, the name of the equation in equations that is not balanced.