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: [83, -58]

Output: [12.5]


Input: Consider Input: [81, -51, 1, -76, 11, 93, -3, 40, -15, -37, -20, -34, -85, -64, -34]

Output: [15.0, -25.0, -37.5, -32.5, 52.0, 45.0, 18.5, 12.5, -26.0, -28.5, -27.0, -59.5, -74.5, -49.0]


Input: Consider Input: [-67, 61, 69, 2, 79, -71, -66, 60, -13, 85]


Output: [-3.0, 65.0, 35.5, 40.5, 4.0, -68.5, -3.0, 23.5, 36.0]