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).

Input: Consider Input: Suppose 2 = -s + 13. Calculate the remainder when s is divided by 4.

Output: 3


Input: Consider Input: Calculate prob of sequence ggrr when four letters picked without replacement from {r: 2, b: 6, t: 6, g: 4}.

Output: 1/3060


Input: Consider Input: Suppose 3*u + 12 = o, 8 = -2*o - 0*u - 2*u. Let l(w) = -5 + 2*w**3 - 3*w**3 + 0*w + o*w**3 - 10*w**2 - w. What is the units digit of l(-10)?


Output: 5