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].

Ex Input:
[-63, -20, 13, 6, -94]

Ex Output:
[-41.5, -3.5, 9.5, -44.0]


Ex Input:
[33, -44]

Ex Output:
[-5.5]


Ex Input:
[-71, 54, -86]

Ex Output:

[-8.5, -16.0]