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:
[84, -86, 12, 56, 39, 30]

Ex Output:
[-1.0, -37.0, 34.0, 47.5, 34.5]


Ex Input:
[87, 34, 59, -97, -67, -71, -28, -51, 56]

Ex Output:
[60.5, 46.5, -19.0, -82.0, -69.0, -49.5, -39.5, 2.5]


Ex Input:
[-1, -95, 61, -8, 6, 98, 96, -32, 66, 44, -23, -90]

Ex Output:

[-48.0, -17.0, 26.5, -1.0, 52.0, 97.0, 32.0, 17.0, 55.0, 10.5, -56.5]