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:
[67, 45, 59, -50, -28, -70, -84, 69, 72, 53]
answer:
[56.0, 52.0, 4.5, -39.0, -49.0, -77.0, -7.5, 70.5, 62.5]


question:
[68, -66]
answer:
[1.0]


question:
[-81, 79, 72, -86, -60, 30, 8, 3, 26, 40, 19]
answer:

[-1.0, 75.5, -7.0, -73.0, -15.0, 19.0, 5.5, 14.5, 33.0, 29.5]