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: [78, -73, -41, -39, 9, 71, 53, 81, -72, -45, 66, 52, 89, -80, 90]

SOLUTION: [2.5, -57.0, -40.0, -15.0, 40.0, 62.0, 67.0, 4.5, -58.5, 10.5, 59.0, 70.5, 4.5, 5.0]

PROBLEM: [-82, -15, -16, -3, 93, -84, 34, -59, 45, -32]

SOLUTION: [-48.5, -15.5, -9.5, 45.0, 4.5, -25.0, -12.5, -7.0, 6.5]

PROBLEM: [-32, -34, 76]

SOLUTION:
[-33.0, 21.0]