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:
[20, 57, 16, -66, -30, -89, 64, -22, 7, -36, -19, -71]
answer:
[38.5, 36.5, -25.0, -48.0, -59.5, -12.5, 21.0, -7.5, -14.5, -27.5, -45.0]


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:
[36, 0, -25, 17, 83, -10, 20, -26, -61, 77, 81, -91, -61]
answer:

[18.0, -12.5, -4.0, 50.0, 36.5, 5.0, -3.0, -43.5, 8.0, 79.0, -5.0, -76.0]