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:
[36, -61, 50, 72, 12, 9]

Ex Output:
[-12.5, -5.5, 61.0, 42.0, 10.5]


Ex Input:
[51, -95, 3, 67, 33, -55, -29, 65, -85, -91]

Ex Output:
[-22.0, -46.0, 35.0, 50.0, -11.0, -42.0, 18.0, -10.0, -88.0]


Ex Input:
[-48, -86, 13, 21, 39, -52, 70, 6, 66, 58, -3, 88, -64]

Ex Output:

[-67.0, -36.5, 17.0, 30.0, -6.5, 9.0, 38.0, 36.0, 62.0, 27.5, 42.5, 12.0]