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:
[7, -23]

Ex Output:
[-8.0]


Ex Input:
[6, 12, 68, 37, 39, 100, -48]

Ex Output:
[9.0, 40.0, 52.5, 38.0, 69.5, 26.0]


Ex Input:
[41, -66, -51, -81, 57, -30, 7]

Ex Output:

[-12.5, -58.5, -66.0, -12.0, 13.5, -11.5]