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:
[-34, 7, -83, 25, -31, 7]

Ex Output:
[-13.5, -38.0, -29.0, -3.0, -12.0]


Ex Input:
[83, 67, 5, -15]

Ex Output:
[75.0, 36.0, -5.0]


Ex Input:
[70, -65, 92, 79, 89, -29, 91, -10, 46, 25]

Ex Output:

[2.5, 13.5, 85.5, 84.0, 30.0, 31.0, 40.5, 18.0, 35.5]