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:
[-72, 72, -34, 49, -10, 60, -21, -14]

Ex Output:
[0.0, 19.0, 7.5, 19.5, 25.0, 19.5, -17.5]


Ex Input:
[65, 82, -67, -51]

Ex Output:
[73.5, 7.5, -59.0]


Ex Input:
[-43, 48, -16, 53, 0, -19, 13, 61, 78, 34, -76, -24, -2]

Ex Output:

[2.5, 16.0, 18.5, 26.5, -9.5, -3.0, 37.0, 69.5, 56.0, -21.0, -50.0, -13.0]