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:
[55, -82, 13, 11, -14, 17]

Ex Output:
[-13.5, -34.5, 12.0, -1.5, 1.5]


Ex Input:
[42, -57, 62, 14, -89, 19, 56, -90, 32, 21, -2, -9]

Ex Output:
[-7.5, 2.5, 38.0, -37.5, -35.0, 37.5, -17.0, -29.0, 26.5, 9.5, -5.5]


Ex Input:
[24, 21, 92, 92, 37, -23, 56, -99, -92, -18, 14, 71]

Ex Output:

[22.5, 56.5, 92.0, 64.5, 7.0, 16.5, -21.5, -95.5, -55.0, -2.0, 42.5]