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:
[-77, 76, 21, 100, 19]
answer:
[-0.5, 48.5, 60.5, 59.5]


question:
[-74, -2]
answer:
[-38.0]


question:
[47, 31, 7, 56, 55]
answer:

[39.0, 19.0, 31.5, 55.5]


