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:
[67, 94, 6, -11, 41, 22, 10, -73, 84]

Ex Output:
[80.5, 50.0, -2.5, 15.0, 31.5, 16.0, -31.5, 5.5]


Ex Input:
[-77, 14, 56, -86, -9, 71, -2, -1, -74, 37, 39, 53]

Ex Output:
[-31.5, 35.0, -15.0, -47.5, 31.0, 34.5, -1.5, -37.5, -18.5, 38.0, 46.0]


Ex Input:
[14, -37, 47]

Ex Output:

[-11.5, 5.0]