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:
[20, -17, 41, -60, 2, 64, 36, 16, -43]

Ex Output:
[1.5, 12.0, -9.5, -29.0, 33.0, 50.0, 26.0, -13.5]


Ex Input:
[69, -90, -81, -41, -38, -41, 15, 55, 18, -24, 52, -55, 79, 84, -59]

Ex Output:
[-10.5, -85.5, -61.0, -39.5, -39.5, -13.0, 35.0, 36.5, -3.0, 14.0, -1.5, 12.0, 81.5, 12.5]


Ex Input:
[64, 54, 52, -13, 95, 16, 74, -17, 84, 12, -43, -35]

Ex Output:

[59.0, 53.0, 19.5, 41.0, 55.5, 45.0, 28.5, 33.5, 48.0, -15.5, -39.0]