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:
[91, 4, -53, 2, 79, -22, -71]

Ex Output:
[47.5, -24.5, -25.5, 40.5, 28.5, -46.5]


Ex Input:
[-25, 42, -59, 3, 93]

Ex Output:
[8.5, -8.5, -28.0, 48.0]


Ex Input:
[-27, -98, 1, 59, -75, -87]

Ex Output:

[-62.5, -48.5, 30.0, -8.0, -81.0]