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: [-49, -91, -7]

Output: [-70.0, -49.0]


Input: Consider Input: [-63, -20, 13, 6, -94]

Output: [-41.5, -3.5, 9.5, -44.0]


Input: Consider Input: [81, 17, 27, 44, 11]


Output: [49.0, 22.0, 35.5, 27.5]