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

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


Input: Consider Input: [-15, 5]

Output: [-5.0]


Input: Consider Input: [49, -60, 17, -6, -96]


Output: [-5.5, -21.5, 5.5, -51.0]