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:
[18, -10, 28, 29, -23, 98]

Ex Output:
[4.0, 9.0, 28.5, 3.0, 37.5]


Ex Input:
[-45, 34]

Ex Output:
[-5.5]


Ex Input:
[-83, 49, -76, -95, -73, -18, 8, 22, 54, 56, 47, 14]

Ex Output:

[-17.0, -13.5, -85.5, -84.0, -45.5, -5.0, 15.0, 38.0, 55.0, 51.5, 30.5]