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:
[-38, 16, 22, 72, 38, -22, 16, -14, 8, -69, 52, -91, -96, 70]

Ex Output:
[-11.0, 19.0, 47.0, 55.0, 8.0, -3.0, 1.0, -3.0, -30.5, -8.5, -19.5, -93.5, -13.0]


Ex Input:
[58, -15]

Ex Output:
[21.5]


Ex Input:
[37, -30, -74, -83]

Ex Output:

[3.5, -52.0, -78.5]