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: [-71, -78, -84, 6, 99, 66, -90, -36, -77, -56, 19, -59, 71]

SOLUTION: [-74.5, -81.0, -39.0, 52.5, 82.5, -12.0, -63.0, -56.5, -66.5, -18.5, -20.0, 6.0]

PROBLEM: [-79, 66, 43, -67, -68, -15, 18, 22, -100, 77, -4, 30, 22]

SOLUTION: [-6.5, 54.5, -12.0, -67.5, -41.5, 1.5, 20.0, -39.0, -11.5, 36.5, 13.0, 26.0]

PROBLEM: [-29, -28, 54, 86, -32, -19, -94, 14, -12, -23, 49, -47, 37, 100, 80]

SOLUTION:
[-28.5, 13.0, 70.0, 27.0, -25.5, -56.5, -40.0, 1.0, -17.5, 13.0, 1.0, -5.0, 68.5, 90.0]

