Given a simple high-school level math question, you are required to solve it and provide the final answer. The final answer is always a single number. These questions can range from a variety of topics like simple arithmetic, solving equations, converting a quantity from one unit to another, finding remainders/GCD/LCM, finding probabilities etc. Each question has only one correct answer. This answer can be a positive or negative integer, a fraction or a decimal number. If the answer is a negative number use the hyphen (e.g. -42) symbol for the minus sign. For decimal numbers, do not add extra zeros after the decimal point. For fractional numbers, separate the numerator and denominator using a forward slash (e.g. 3/25).

Ex Input:
Suppose 2*y + 12 = 6*y. Suppose y = f - 15. Solve -8 = -4*w, -3*d - 4*w + f = -8*d for d.

Ex Output:
-2


Ex Input:
Four letters picked without replacement from qfqyqqcyiicqf. What is prob of sequence icyf?

Ex Output:
2/2145


Ex Input:
Suppose 4*q - 4*k + 24 = 0, 5*q + k + 2 = -k. Calculate the remainder when 40 is divided by (q - 0 - 0) + 16.

Ex Output:

12