On a certain game show, contestants pick 5 number balls from a bag containing 20 numbered balls (0-19). After each draw, the balls are NOT put back into the bag. If the balls they chose match the winning sequence of 7,8,2,3,0 in the correct order, they will win a $1,000,000 prize. what is the probability of a contestant winning the $1,000,000 prize?

please help I'm lost