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: [-70, -94]

Output: [-82.0]


Input: Consider Input: [4, 49]

Output: [26.5]


Input: Consider Input: [17, -72, -86, -25, -8]


Output: [-27.5, -79.0, -55.5, -16.5]