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: [20, 57, 16, -66, -30, -89, 64, -22, 7, -36, -19, -71]

Output: [38.5, 36.5, -25.0, -48.0, -59.5, -12.5, 21.0, -7.5, -14.5, -27.5, -45.0]


Input: Consider Input: [6, 80, -33, -48, -65, 9, 53, 34, 54]

Output: [43.0, 23.5, -40.5, -56.5, -28.0, 31.0, 43.5, 44.0]


Input: Consider Input: [-18, -57, 1]


Output: [-37.5, -28.0]