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:
[-13, 58, 24, 49, 97]

Ex Output:
[22.5, 41.0, 36.5, 73.0]


Ex Input:
[-58, -95, -44, 37, -31, -21, -67]

Ex Output:

[-76.5, -69.5, -3.5, 3.0, -26.0, -44.0]