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:
[77, -69, -47, 13, 70, 22, 70, 22, -29, 80, 83]

Ex Output:
[4.0, -58.0, -17.0, 41.5, 46.0, 46.0, 46.0, -3.5, 25.5, 81.5]


Ex Input:
[-27, 83, -67, 51, -57, -18, -59, 85, -84, 68, 16, 61]

Ex Output:
[28.0, 8.0, -8.0, -3.0, -37.5, -38.5, 13.0, 0.5, -8.0, 42.0, 38.5]


Ex Input:
[30, 37, 79, -66, -22, -92, -54]

Ex Output:

[33.5, 58.0, 6.5, -44.0, -57.0, -73.0]