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, -25, 16, 74, -18]

Ex Output:
[-9.0, -4.5, 45.0, 28.0]


Ex Input:
[-67, -96, -7, 11]

Ex Output:
[-81.5, -51.5, 2.0]


Ex Input:
[-63, -88, -78, 25, 59, 17, 22, 5, 27, 49, -22, 37, -48, 31]

Ex Output:

[-75.5, -83.0, -26.5, 42.0, 38.0, 19.5, 13.5, 16.0, 38.0, 13.5, 7.5, -5.5, -8.5]