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:
[85, 64]

Ex Output:
[74.5]


Ex Input:
[-81, -5, -18, -96, 28, -86, 50, 63, 80, -52]

Ex Output:
[-43.0, -11.5, -57.0, -34.0, -29.0, -18.0, 56.5, 71.5, 14.0]


Ex Input:
[-3, -22, -77, 33, 44, 66]

Ex Output:

[-12.5, -49.5, -22.0, 38.5, 55.0]