Since mice are the most intelligent species on Earth with Dolphins being the second and humans being the third, it makes sense that if we encounter any extraterrestrial life forms, we would want to send our best and brightest to have first contact. Besides, humans are among the most ignorant and technologically backward people in the universe.

Looking at the problem isn't the correct answer 4+3+2=(4+3)+2 or 4+3+2=(3+4)+2 The problem with parenthesis are they have a mathematical meaning already. They determine the order of precedence.