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: [-22, -85]

Answer: [-53.5]


Question: [17, -31, 89, -43, 58, -50, 2, -61]

Answer: [-7.0, 29.0, 23.0, 7.5, 4.0, -24.0, -29.5]


Question: [-71, -67, 98, -54, -3, 28, 45, 56, 35, 16, 71, -5, -83]

Answer:
[-69.0, 15.5, 22.0, -28.5, 12.5, 36.5, 50.5, 45.5, 25.5, 43.5, 33.0, -44.0]