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: [-67, -78, -72, 9, -90, 64, 13, -2, -61, 45, 36, -7, -25, 68]

SOLUTION: [-72.5, -75.0, -31.5, -40.5, -13.0, 38.5, 5.5, -31.5, -8.0, 40.5, 14.5, -16.0, 21.5]

PROBLEM: [9, 43, 32, 49, 89, -91, -51, -62, 48, -80, -25, -35, 27, -12]

SOLUTION: [26.0, 37.5, 40.5, 69.0, -1.0, -71.0, -56.5, -7.0, -16.0, -52.5, -30.0, -4.0, 7.5]

PROBLEM: [-35, -67, -30, 46, -81, -40, -41, 58]

SOLUTION:
[-51.0, -48.5, 8.0, -17.5, -60.5, -40.5, 8.5]

