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: [42, 42, 0, -99, -11, 17, -42, -72]

Output: [42.0, 21.0, -49.5, -55.0, 3.0, -12.5, -57.0]


Input: Consider Input: [-96, 98, -35, 46, -22, 70, 24, 35, 59, -23, -99, -43, 27, 67]


Output: [1.0, 31.5, 5.5, 12.0, 24.0, 47.0, 29.5, 47.0, 18.0, -61.0, -71.0, -8.0, 47.0]