The task is to generate the correct answer for a given math problem.

Ex Input:
Problem: the probability is 1 / 2 that a certain coin turns up heads on any given toss . if the coin is tossed 6 times , what is the probability that the coin turns up tails on at least one of the tosses ?

Ex Output:
63 / 64


Ex Input:
Problem: the sum of two consecutive numbers is 37 . what are they ?

Ex Output:
18 and 19


Ex Input:
Problem: the sector of a circle has perimeter 83 cm and central angle 225 o . find its radius ?

Ex Output:

14 cm