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:
[-68, -29, -8, -76, 90, 60, 14, 63, -12]

Ex Output:
[-48.5, -18.5, -42.0, 7.0, 75.0, 37.0, 38.5, 25.5]


Ex Input:
[-70, -94]

Ex Output:
[-82.0]


Ex Input:
[70, 97, -24]

Ex Output:

[83.5, 36.5]