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:
[45, 48, -28, 45]

Ex Output:
[46.5, 10.0, 8.5]


Ex Input:
[27, -78, -59, -24, 69, -13, 27, 48, -2, -82, 23, 13, 19, 7]

Ex Output:
[-25.5, -68.5, -41.5, 22.5, 28.0, 7.0, 37.5, 23.0, -42.0, -29.5, 18.0, 16.0, 13.0]


Ex Input:
[84, 76, 47, 77, 82, -72, 89, -20, 55, 40]

Ex Output:

[80.0, 61.5, 62.0, 79.5, 5.0, 8.5, 34.5, 17.5, 47.5]