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:
[11, 88]

Ex Output:
[49.5]


Ex Input:
[-19, 69, 5, -99, 92, 24]

Ex Output:
[25.0, 37.0, -47.0, -3.5, 58.0]


Ex Input:
[-58, -12, -16, 34, 46, -8, 53, -82, 68, 9, 21, 88]

Ex Output:

[-35.0, -14.0, 9.0, 40.0, 19.0, 22.5, -14.5, -7.0, 38.5, 15.0, 54.5]