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].
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Question: [12, -25, -52]

Answer: [-6.5, -38.5]


Question: [-27, 83, -67, 51, -57, -18, -59, 85, -84, 68, 16, 61]

Answer: [28.0, 8.0, -8.0, -3.0, -37.5, -38.5, 13.0, 0.5, -8.0, 42.0, 38.5]


Question: [4, -77, 87, -87, 86, -50, 39, 89, 87]

Answer:
[-36.5, 5.0, 0.0, -0.5, 18.0, -5.5, 64.0, 88.0]