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].

[-63, 4, 4, 49, -83, 99, 85, -18, 11, 83, 73]
[-29.5, 4.0, 26.5, -17.0, 8.0, 92.0, 33.5, -3.5, 47.0, 78.0]

[-100, 41, -68, -31, -71, -40, 77]
[-29.5, -13.5, -49.5, -51.0, -55.5, 18.5]

[-70, -20, -16, -96, -15, -39, -44, 23, 86, -72, 40, 55, -88, -95, 77]

[-45.0, -18.0, -56.0, -55.5, -27.0, -41.5, -10.5, 54.5, 7.0, -16.0, 47.5, -16.5, -91.5, -9.0]

