You will be given a definition of a task first, then some input of the task.
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].

[-84, -3, 17, -41, 40, 22, -50, 48, -40, -62, 95, -36, 67, -83, -78]
Output:
[-43.5, 7.0, -12.0, -0.5, 31.0, -14.0, -1.0, 4.0, -51.0, 16.5, 29.5, 15.5, -8.0, -80.5]