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 five quarters of a micrometer in nanometers?

Output: 1250


Input: Consider Input: What is the tens digit of -8*(1 - 110/4)?

Output: 1


Input: Consider Input: Suppose 3*a - 16 = 107. Let t = -17 + a. What is the units digit of t?


Output: 4