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:
[-73, -25, -81, 3, 49, -56, 5, -90, -83, -48, 47]

Ex Output:
[-49.0, -53.0, -39.0, 26.0, -3.5, -25.5, -42.5, -86.5, -65.5, -0.5]


Ex Input:
[91, 3, -59, 63]

Ex Output:
[47.0, -28.0, 2.0]


Ex Input:
[-93, -60, -24, -26, -61, -12, 40, 57, -50, -45, -8, -86, 94, 68]

Ex Output:

[-76.5, -42.0, -25.0, -43.5, -36.5, 14.0, 48.5, 3.5, -47.5, -26.5, -47.0, 4.0, 81.0]