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:
[7, -21, -30, -4, -56, 19, 24, -47, 92]

Ex Output:
[-7.0, -25.5, -17.0, -30.0, -18.5, 21.5, -11.5, 22.5]


Ex Input:
[-71, 68, -72, -53, -64, -1, -98, -66, 45, -60, 42]

Ex Output:

[-1.5, -2.0, -62.5, -58.5, -32.5, -49.5, -82.0, -10.5, -7.5, -9.0]