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: What is the square root of 664 to the nearest integer?

Output: 26


Input: Consider Input: How many hours are there in 40.53144 weeks?

Output: 6809.28192


Input: Consider Input: Solve 34*v - 29*v = -5*f + 20, -2*v = -3*f + 12 for v.


Output: 0