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:
[9, 62, 4, -63, -50, 9, -19, -42, -20]
answer:
[35.5, 33.0, -29.5, -56.5, -20.5, -5.0, -30.5, -31.0]


question:
[-21, 92, -76, 59, 41, -99, -5, 35, 92, 66, -50]
answer:
[35.5, 8.0, -8.5, 50.0, -29.0, -52.0, 15.0, 63.5, 79.0, 8.0]


question:
[-17, -82, -5, -22, 67, 69, -11, -31, -95, 67, -84]
answer:

[-49.5, -43.5, -13.5, 22.5, 68.0, 29.0, -21.0, -63.0, -14.0, -8.5]