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].

Input: Consider Input: [-27, -64]

Output: [-45.5]


Input: Consider Input: [77, -69, -47, 13, 70, 22, 70, 22, -29, 80, 83]

Output: [4.0, -58.0, -17.0, 41.5, 46.0, 46.0, 46.0, -3.5, 25.5, 81.5]


Input: Consider Input: [-55, -7, 47, -29, -31, 74, 23, -55, -92, 43, -100, -98, -77]


Output: [-31.0, 20.0, 9.0, -30.0, 21.5, 48.5, -16.0, -73.5, -24.5, -28.5, -99.0, -87.5]