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: [77, 66, 11]

Output: [71.5, 38.5]


Input: Consider Input: [-17, -67, -20, -30, 91, 51, -35, -90, 6, 93, -32, -97, 98, -11]

Output: [-42.0, -43.5, -25.0, 30.5, 71.0, 8.0, -62.5, -42.0, 49.5, 30.5, -64.5, 0.5, 43.5]


Input: Consider Input: [-35, 90, 23, -93, 24, 35, 12, 86, -15, 42, -58, 23, 43]


Output: [27.5, 56.5, -35.0, -34.5, 29.5, 23.5, 49.0, 35.5, 13.5, -8.0, -17.5, 33.0]