TASK DEFINITION: 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].
PROBLEM: [42, -88, 79, -30, 60, 0, -35, -9, -72, 97, -57, -41, -43]

SOLUTION: [-23.0, -4.5, 24.5, 15.0, 30.0, -17.5, -22.0, -40.5, 12.5, 20.0, -49.0, -42.0]

PROBLEM: [-27, -76, 16, 92, 73, -80, -56]

SOLUTION: [-51.5, -30.0, 54.0, 82.5, -3.5, -68.0]

PROBLEM: [47, -58, -28, -2, -30, 11, 83, -49, 76, 87, -58, 79, -3]

SOLUTION:
[-5.5, -43.0, -15.0, -16.0, -9.5, 47.0, 17.0, 13.5, 81.5, 14.5, 10.5, 38.0]