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: [58, -99]

Output: [-20.5]


Input: Consider Input: [-21, 10, 33, 79, -27, 13, -24, 64, -2, 23]

Output: [-5.5, 21.5, 56.0, 26.0, -7.0, -5.5, 20.0, 31.0, 10.5]


Input: Consider Input: [51, 71, 53]


Output: [61.0, 62.0]