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:
[91, -52, -63, 41]

Ex Output:
[19.5, -57.5, -11.0]


Ex Input:
[-94, 9, 98, -36, 85, 33, -53]

Ex Output:
[-42.5, 53.5, 31.0, 24.5, 59.0, -10.0]


Ex Input:
[-71, -53]

Ex Output:

[-62.0]