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:
[-12, -11, -13, 37, 73, -7, -15, 62, 1, 5, 93, -30, 21, 29, 99]
answer:
[-11.5, -12.0, 12.0, 55.0, 33.0, -11.0, 23.5, 31.5, 3.0, 49.0, 31.5, -4.5, 25.0, 64.0]


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:
[-70, 69, 8, -66, 33, 35, 74, 88, 46, 59, 75]
answer:

[-0.5, 38.5, -29.0, -16.5, 34.0, 54.5, 81.0, 67.0, 52.5, 67.0]