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:
[36, -61, 50, 72, 12, 9]

Ex Output:
[-12.5, -5.5, 61.0, 42.0, 10.5]


Ex Input:
[1, 77, 55, -37, -65, 80, 31, -37, -61, 3, -80]

Ex Output:
[39.0, 66.0, 9.0, -51.0, 7.5, 55.5, -3.0, -49.0, -29.0, -38.5]


Ex Input:
[28, -44, -2]

Ex Output:

[-8.0, -23.0]