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:
[-74, -2]

Ex Output:
[-38.0]


Ex Input:
[-1, 75, -1, -37, -38, -10, 70, -75, -98, 39, 37, -15, 60]

Ex Output:
[37.0, 37.0, -19.0, -37.5, -24.0, 30.0, -2.5, -86.5, -29.5, 38.0, 11.0, 22.5]


Ex Input:
[-21, -28, 70, -93, -88, -71, 46, -6, -95]

Ex Output:

[-24.5, 21.0, -11.5, -90.5, -79.5, -12.5, 20.0, -50.5]