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:
[-21, 10, 33, 79, -27, 13, -24, 64, -2, 23]

Ex Output:
[-5.5, 21.5, 56.0, 26.0, -7.0, -5.5, 20.0, 31.0, 10.5]


Ex Input:
[-26, -40, -22, -65, -61, 16, 26, 51, -24]

Ex Output:
[-33.0, -31.0, -43.5, -63.0, -22.5, 21.0, 38.5, 13.5]


Ex Input:
[0, -58, 58]

Ex Output:

[-29.0, 0.0]