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:
[33, -44]

Ex Output:
[-5.5]


Ex Input:
[78, -73, -41, -39, 9, 71, 53, 81, -72, -45, 66, 52, 89, -80, 90]

Ex Output:
[2.5, -57.0, -40.0, -15.0, 40.0, 62.0, 67.0, 4.5, -58.5, 10.5, 59.0, 70.5, 4.5, 5.0]


Ex Input:
[49, -96, -31, -27, 63, -80, 29, 96, 70, 79, -23, 9, -79, 85]

Ex Output:

[-23.5, -63.5, -29.0, 18.0, -8.5, -25.5, 62.5, 83.0, 74.5, 28.0, -7.0, -35.0, 3.0]