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:
[-32, -39, -13]

Ex Output:
[-35.5, -26.0]


Ex Input:
[-81, -97, 24, 13, -42, -46, -6, 31]

Ex Output:
[-89.0, -36.5, 18.5, -14.5, -44.0, -26.0, 12.5]


Ex Input:
[-18, 33, 82, 34, 45, -94, -8, -58, -85, 78, -2, -57, 94, -16]

Ex Output:

[7.5, 57.5, 58.0, 39.5, -24.5, -51.0, -33.0, -71.5, -3.5, 38.0, -29.5, 18.5, 39.0]