instruction:
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].
question:
[-15, -37, -91, -88, -52, -30, 63, 69, -36, 41, 39, -49, 7, -57, -37]
answer:
[-26.0, -64.0, -89.5, -70.0, -41.0, 16.5, 66.0, 16.5, 2.5, 40.0, -5.0, -21.0, -25.0, -47.0]


question:
[27, -78, -59, -24, 69, -13, 27, 48, -2, -82, 23, 13, 19, 7]
answer:
[-25.5, -68.5, -41.5, 22.5, 28.0, 7.0, 37.5, 23.0, -42.0, -29.5, 18.0, 16.0, 13.0]


question:
[-57, 72, -25, 81, 87, 84, -66]
answer:

[7.5, 23.5, 28.0, 84.0, 85.5, 9.0]