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:
[66, 64, 72, -51, 62, 66, -93]

Ex Output:
[65.0, 68.0, 10.5, 5.5, 64.0, -13.5]


Ex Input:
[-7, 40, 98, 92, -81, 78, -22, 21]

Ex Output:
[16.5, 69.0, 95.0, 5.5, -1.5, 28.0, -0.5]


Ex Input:
[99, 19]

Ex Output:

[59.0]