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:
[79, 37]

Ex Output:
[58.0]


Ex Input:
[83, -11, 38]

Ex Output:
[36.0, 13.5]


Ex Input:
[73, 65, 10, -80, -47, 0, 25, 79, -55, -79, 85, 18, 38]

Ex Output:

[69.0, 37.5, -35.0, -63.5, -23.5, 12.5, 52.0, 12.0, -67.0, 3.0, 51.5, 28.0]