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:
[79, -21, 98, 57, -90, 11, 45, -2, 6, -34]

Ex Output:
[29.0, 38.5, 77.5, -16.5, -39.5, 28.0, 21.5, 2.0, -14.0]


Ex Input:
[17, -31, 89, -43, 58, -50, 2, -61]

Ex Output:
[-7.0, 29.0, 23.0, 7.5, 4.0, -24.0, -29.5]


Ex Input:
[97, -35, -69, -86, 24, 74, 76, -90, 16, -18, 26, 46, 20, 19]

Ex Output:

[31.0, -52.0, -77.5, -31.0, 49.0, 75.0, -7.0, -37.0, -1.0, 4.0, 36.0, 33.0, 19.5]