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:
[49, -66]

Ex Output:
[-8.5]


Ex Input:
[-52, -41, 25, 7, -96, -81, 44, 92, -83, -29, 1, 0]

Ex Output:
[-46.5, -8.0, 16.0, -44.5, -88.5, -18.5, 68.0, 4.5, -56.0, -14.0, 0.5]


Ex Input:
[-73, -63, 79, 46, 99, 30, -90, 21, -66, -84, -19, 20]

Ex Output:

[-68.0, 8.0, 62.5, 72.5, 64.5, -30.0, -34.5, -22.5, -75.0, -51.5, 0.5]