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:
[70, 88, 58, -25, 49, -89, 76, -46, 59, 48, -40, -62]

Ex Output:
[79.0, 73.0, 16.5, 12.0, -20.0, -6.5, 15.0, 6.5, 53.5, 4.0, -51.0]


Ex Input:
[81, 73]

Ex Output:
[77.0]


Ex Input:
[-5, 63]

Ex Output:

[29.0]