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:
[-6, -18, 1, 1, 14, -47, -51, 100, 60, 24, 78, -80, 72, 41, 23]

Ex Output:
[-12.0, -8.5, 1.0, 7.5, -16.5, -49.0, 24.5, 80.0, 42.0, 51.0, -1.0, -4.0, 56.5, 32.0]


Ex Input:
[-16, 54, 42]

Ex Output:
[19.0, 48.0]


Ex Input:
[-14, -21, -48, 21, 9, -85, 63, 51, 62, 32, -7, -15, -30, 9, -100]

Ex Output:

[-17.5, -34.5, -13.5, 15.0, -38.0, -11.0, 57.0, 56.5, 47.0, 12.5, -11.0, -22.5, -10.5, -45.5]