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:
[10, 69, 6, -80, -39, 74]
answer:
[39.5, 37.5, -37.0, -59.5, 17.5]


question:
[42, 55, -1, 83, 35, 85, 50, 90, -12, -65, 43, 94, 39, -39, -78]
answer:
[48.5, 27.0, 41.0, 59.0, 60.0, 67.5, 70.0, 39.0, -38.5, -11.0, 68.5, 66.5, 0.0, -58.5]


question:
[22, 94, -14, -11, -55, -9, -59, 98, -87, -1, 17]
answer:

[58.0, 40.0, -12.5, -33.0, -32.0, -34.0, 19.5, 5.5, -44.0, 8.0]