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:
[85, 64]

Ex Output:
[74.5]


Ex Input:
[68, -24, 24]

Ex Output:
[22.0, 0.0]


Ex Input:
[-47, -78]

Ex Output:

[-62.5]