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].

[Q]: [-16, 54, 42]
[A]: [19.0, 48.0]


[Q]: [-68, 22, -96, 77, 86, -19, 90, 65, -47, -15, 8, 17, -64, -18, 64]
[A]: [-23.0, -37.0, -9.5, 81.5, 33.5, 35.5, 77.5, 9.0, -31.0, -3.5, 12.5, -23.5, -41.0, 23.0]


[Q]: [-28, 69, -74, 54, 99, -19, -5, 47, -80, 87, 69, -98, -60]
[A]:
[20.5, -2.5, -10.0, 76.5, 40.0, -12.0, 21.0, -16.5, 3.5, 78.0, -14.5, -79.0]