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:
[0, -85, 1, 64, 53, -80, 18, 45, 57, -84, -11, 80, -23, 91]

Ex Output:
[-42.5, -42.0, 32.5, 58.5, -13.5, -31.0, 31.5, 51.0, -13.5, -47.5, 34.5, 28.5, 34.0]


Ex Input:
[-32, 68, 89, 47, -57, -43, -91, -62, 5, -88, 77, -84, 93, -67]

Ex Output:
[18.0, 78.5, 68.0, -5.0, -50.0, -67.0, -76.5, -28.5, -41.5, -5.5, -3.5, 4.5, 13.0]


Ex Input:
[-9, 19]

Ex Output:

[5.0]