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:
[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, -85]
answer:
[-53.5]


question:
[-31, -16, 36, 91, -37, 59, -62, 49, -76, -19, 14, 64]
answer:

[-23.5, 10.0, 63.5, 27.0, 11.0, -1.5, -6.5, -13.5, -47.5, -2.5, 39.0]