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:
[1, -27, 100, -100, -52, -57, 25, -14, -46, 81]

Ex Output:
[-13.0, 36.5, 0.0, -76.0, -54.5, -16.0, 5.5, -30.0, 17.5]


Ex Input:
[-74, -74, 64, -88, 59, 99, 27, -18, -49]

Ex Output:
[-74.0, -5.0, -12.0, -14.5, 79.0, 63.0, 4.5, -33.5]


Ex Input:
[48, -100, 89, 33, 80, -86, -66]

Ex Output:

[-26.0, -5.5, 61.0, 56.5, -3.0, -76.0]