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:
[86, -66, -60]

Ex Output:
[10.0, -63.0]


Ex Input:
[-37, 89]

Ex Output:
[26.0]


Ex Input:
[82, -60, 29, -24, 33, 5, 85, 82, -29, -65, -45, -37, -85]

Ex Output:

[11.0, -15.5, 2.5, 4.5, 19.0, 45.0, 83.5, 26.5, -47.0, -55.0, -41.0, -61.0]