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:
[56, -80, -51, -27, -97, 98, 99, -25, -55, 99, -9, -66, -83, 38, -95]
answer:
[-12.0, -65.5, -39.0, -62.0, 0.5, 98.5, 37.0, -40.0, 22.0, 45.0, -37.5, -74.5, -22.5, -28.5]


question:
[-38, 74, -68, -95, -2, -19, 29, 63, 11, 95, 82, -57, -50, -12]
answer:
[18.0, 3.0, -81.5, -48.5, -10.5, 5.0, 46.0, 37.0, 53.0, 88.5, 12.5, -53.5, -31.0]


question:
[85, -18]
answer:

[33.5]