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:
[75, 87, -2, 42, -20, -50, 51]
answer:
[81.0, 42.5, 20.0, 11.0, -35.0, 0.5]


question:
[78, 3, 3, 50, 80, -76, -73, -20, -71, -29, -47, 4]
answer:
[40.5, 3.0, 26.5, 65.0, 2.0, -74.5, -46.5, -45.5, -50.0, -38.0, -21.5]


question:
[-39, 39, -83, 91, -42, -24, -29, -7, -11, -1, 19, -89]
answer:

[0.0, -22.0, 4.0, 24.5, -33.0, -26.5, -18.0, -9.0, -6.0, 9.0, -35.0]