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].

Ex Input:
[93, -62, -77, 30]

Ex Output:
[15.5, -69.5, -23.5]


Ex Input:
[-12, -2, 33, -26, 37, -82, -14, 56, -39, 57, 2]

Ex Output:
[-7.0, 15.5, 3.5, 5.5, -22.5, -48.0, 21.0, 8.5, 9.0, 29.5]


Ex Input:
[-71, -5, -97, 8, -33]

Ex Output:

[-38.0, -51.0, -44.5, -12.5]