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:
[-96, 12]

Ex Output:
[-42.0]


Ex Input:
[75, 67, 18, -15, -51, -80, -73]

Ex Output:
[71.0, 42.5, 1.5, -33.0, -65.5, -76.5]


Ex Input:
[-56, 71, 54, -28, 75, -89, -82, 39, -12, 81, 37, 35, 39, 66, 60]

Ex Output:

[7.5, 62.5, 13.0, 23.5, -7.0, -85.5, -21.5, 13.5, 34.5, 59.0, 36.0, 37.0, 52.5, 63.0]