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: [-15, 5]

Output: [-5.0]


Input: Consider Input: [25, -2, -89, -18, 21, 27, -11, -40, 38, 92, 85, -51, -89, -44, -19]

Output: [11.5, -45.5, -53.5, 1.5, 24.0, 8.0, -25.5, -1.0, 65.0, 88.5, 17.0, -70.0, -66.5, -31.5]


Input: Consider Input: [24, -45, 89, -30, 63, -79, -53, -22, -64, -26, 21, -19, -16, 16, 87]


Output: [-10.5, 22.0, 29.5, 16.5, -8.0, -66.0, -37.5, -43.0, -45.0, -2.5, 1.0, -17.5, 0.0, 51.5]