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:
[37, -48, 49]

Ex Output:
[-5.5, 0.5]


Ex Input:
[-72, 72, -34, 49, -10, 60, -21, -14]

Ex Output:
[0.0, 19.0, 7.5, 19.5, 25.0, 19.5, -17.5]


Ex Input:
[-12, -1, 53, -50, -47, -69, 67, -95, 66]

Ex Output:

[-6.5, 26.0, 1.5, -48.5, -58.0, -1.0, -14.0, -14.5]