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].

[81, 73]
[77.0]

[83, 68, 64, 59]
[75.5, 66.0, 61.5]

[-43, 34, 75, 4, 7, 100, 79, -19, -96, 80, 95, 84, 47, -6]

[-4.5, 54.5, 39.5, 5.5, 53.5, 89.5, 30.0, -57.5, -8.0, 87.5, 89.5, 65.5, 20.5]

