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:
[79, 42, -75, -7]

Ex Output:
[60.5, -16.5, -41.0]


Ex Input:
[-81, -11, -100, 66, 29, 28, 31, -36]

Ex Output:
[-46.0, -55.5, -17.0, 47.5, 28.5, 29.5, -2.5]


Ex Input:
[-74, 19, -34, -58, 78, 58, -90, -33]

Ex Output:

[-27.5, -7.5, -46.0, 10.0, 68.0, -16.0, -61.5]