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:
[-76, -32, -40, 62, 72, 71, 3, -22]

Ex Output:
[-54.0, -36.0, 11.0, 67.0, 71.5, 37.0, -9.5]


Ex Input:
[-70, -94]

Ex Output:
[-82.0]


Ex Input:
[16, -44, 10, -61, 83, 85, 99, 27, 77, 70, -72, -89, -31]

Ex Output:

[-14.0, -17.0, -25.5, 11.0, 84.0, 92.0, 63.0, 52.0, 73.5, -1.0, -80.5, -60.0]