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].

Example Input: [58, -99]
Example Output: [-20.5]

Example Input: [-13, 58, 24, 49, 97]
Example Output: [22.5, 41.0, 36.5, 73.0]

Example Input: [99, -48, 49, 53, -3, 2, -69, -83, -14, 3, 17, 96, 48, -5]
Example Output:
[25.5, 0.5, 51.0, 25.0, -0.5, -33.5, -76.0, -48.5, -5.5, 10.0, 56.5, 72.0, 21.5]