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:
[-55, -71, -30, -22]

Ex Output:
[-63.0, -50.5, -26.0]


Ex Input:
[-68, -29, -8, -76, 90, 60, 14, 63, -12]

Ex Output:
[-48.5, -18.5, -42.0, 7.0, 75.0, 37.0, 38.5, 25.5]


Ex Input:
[9, 43, 32, 49, 89, -91, -51, -62, 48, -80, -25, -35, 27, -12]

Ex Output:

[26.0, 37.5, 40.5, 69.0, -1.0, -71.0, -56.5, -7.0, -16.0, -52.5, -30.0, -4.0, 7.5]