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:
[47, -34, 89, -12, -79, -52, -80, 55, 75, -8, 72, -38, 87, 1, -78]

Ex Output:
[6.5, 27.5, 38.5, -45.5, -65.5, -66.0, -12.5, 65.0, 33.5, 32.0, 17.0, 24.5, 44.0, -38.5]


Ex Input:
[-71, -61, -75, 65, -16, -56, 58, -39, 19, 55, -66, -24]

Ex Output:
[-66.0, -68.0, -5.0, 24.5, -36.0, 1.0, 9.5, -10.0, 37.0, -5.5, -45.0]


Ex Input:
[20, 57, 16, -66, -30, -89, 64, -22, 7, -36, -19, -71]

Ex Output:

[38.5, 36.5, -25.0, -48.0, -59.5, -12.5, 21.0, -7.5, -14.5, -27.5, -45.0]