You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
In this task you are given a list of numbers and you need to find the average of each two consecutive values. The average of two numbers a and b is calculated as: (a + b) /2. The output should be a list of the averages of each two consecutive values. A list is presented with two brackets and comma-separated values, like: [1,2,3].

[-4, 7, 3]
Solution: [1.5, 5]
Why? To create the answer, we should first calculate the average of -4 and 7, that is: (-4 + 7 ) / 2 = 1.5, so the first element of the answer is 1.5. Then, we need to calculate the average of 7 and 3, that is: 5. So the second element of the answer is 5.

New input: [-67, 22, -98, 89, 26, 79, 15, -87, -48, 87, 57, -23, -43]
Solution:
[-22.5, -38.0, -4.5, 57.5, 52.5, 47.0, -36.0, -67.5, 19.5, 72.0, 17.0, -33.0]