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:
[-94, -24]

Ex Output:
[-59.0]


Ex Input:
[79, 93, 22, -12, 60, -51, 71, -59, -27, -43, -31, 60, -55]

Ex Output:
[86.0, 57.5, 5.0, 24.0, 4.5, 10.0, 6.0, -43.0, -35.0, -37.0, 14.5, 2.5]


Ex Input:
[-17, -45, -43]

Ex Output:

[-31.0, -44.0]