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:
[36, -53]

Ex Output:
[-8.5]


Ex Input:
[60, 91, 22, -94, -97, -3, -34, -62, -88, -42, 22, -93, -33, -19]

Ex Output:
[75.5, 56.5, -36.0, -95.5, -50.0, -18.5, -48.0, -75.0, -65.0, -10.0, -35.5, -63.0, -26.0]


Ex Input:
[-51, -2, 8, 87, 47]

Ex Output:

[-26.5, 3.0, 47.5, 67.0]