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:
[64, -5, -29]

Ex Output:
[29.5, -17.0]


Ex Input:
[-58, -80, -97, 53, -11, -86, -29]

Ex Output:
[-69.0, -88.5, -22.0, 21.0, -48.5, -57.5]


Ex Input:
[-65, 5, 21, 53]

Ex Output:

[-30.0, 13.0, 37.0]