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:
[-55, -71, -30, -22]
answer:
[-63.0, -50.5, -26.0]


question:
[93, -20, -64, -4, -73, 78, -84, 84, -87]
answer:
[36.5, -42.0, -34.0, -38.5, 2.5, -3.0, 0.0, -1.5]


question:
[8, -17, -14, -51, 12, 58, -36, 9, 12, 65, 17, 66]
answer:

[-4.5, -15.5, -32.5, -19.5, 35.0, 11.0, -13.5, 10.5, 38.5, 41.0, 41.5]