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:
[-19, 17, -76, 38, 49, -1, 98, -89, -27, 49, 6, 44, 81, 0, 80]
answer:
[-1.0, -29.5, -19.0, 43.5, 24.0, 48.5, 4.5, -58.0, 11.0, 27.5, 25.0, 62.5, 40.5, 40.0]


question:
[59, -19, -85]
answer:
[20.0, -52.0]


question:
[-85, -72, -70, 49, -49, 31, -38, 94, -97, 42, 10]
answer:

[-78.5, -71.0, -10.5, 0.0, -9.0, -3.5, 28.0, -1.5, -27.5, 26.0]