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].

[EX Q]: [-19, 17, -76, 38, 49, -1, 98, -89, -27, 49, 6, 44, 81, 0, 80]
[EX A]: [-1.0, -29.5, -19.0, 43.5, 24.0, 48.5, 4.5, -58.0, 11.0, 27.5, 25.0, 62.5, 40.5, 40.0]

[EX Q]: [92, -24, -56, -81, 53, 60, 5, -82, -14, -26, -31, -83, 17]
[EX A]: [34.0, -40.0, -68.5, -14.0, 56.5, 32.5, -38.5, -48.0, -20.0, -28.5, -57.0, -33.0]

[EX Q]: [-100, -98, -63, 61, -54, 65, 70]
[EX A]:
[-99.0, -80.5, -1.0, 3.5, 5.5, 67.5]