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:
[-89, 26, -64, -96, 40, -90, -88]

Ex Output:
[-31.5, -19.0, -80.0, -28.0, -25.0, -89.0]


Ex Input:
[-71, 91, 51, -78, -87, -87, 71]

Ex Output:
[10.0, 71.0, -13.5, -82.5, -87.0, -8.0]


Ex Input:
[8, -90]

Ex Output:

[-41.0]