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:
[-56, 30, -70]

Ex Output:
[-13.0, -20.0]


Ex Input:
[-62, -84, 41, -93, -53]

Ex Output:
[-73.0, -21.5, -26.0, -73.0]


Ex Input:
[85, 100]

Ex Output:

[92.5]