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: [31, -43]

Output: [-6.0]


Input: Consider Input: [48, 69, 7, 42, 46, -27, -58, 24, 95, 57]

Output: [58.5, 38.0, 24.5, 44.0, 9.5, -42.5, -17.0, 59.5, 76.0]


Input: Consider Input: [-98, -39, -63]


Output: [-68.5, -51.0]