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:
[-68, 93, -7, 31, -45, -70, -28, 78]

Ex Output:
[12.5, 43.0, 12.0, -7.0, -57.5, -49.0, 25.0]


Ex Input:
[34, -47, 92, -36, 63, 63, -15, 93, 3, -77, -86, -12, -86]

Ex Output:
[-6.5, 22.5, 28.0, 13.5, 63.0, 24.0, 39.0, 48.0, -37.0, -81.5, -49.0, -49.0]


Ex Input:
[66, -36, -65, 21, 68, 79, -2]

Ex Output:

[15.0, -50.5, -22.0, 44.5, 73.5, 38.5]