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:
[77, -69, -47, 13, 70, 22, 70, 22, -29, 80, 83]

Ex Output:
[4.0, -58.0, -17.0, 41.5, 46.0, 46.0, 46.0, -3.5, 25.5, 81.5]


Ex Input:
[60, 91, 22, -94, -97, -3, -34, -62, -88, -42, 22, -93, -33, -19]

Ex Output:
[75.5, 56.5, -36.0, -95.5, -50.0, -18.5, -48.0, -75.0, -65.0, -10.0, -35.5, -63.0, -26.0]


Ex Input:
[-83, 24, -27, 85, 47, 32, 23, -29, -68, -2, -90, -30, 18]

Ex Output:

[-29.5, -1.5, 29.0, 66.0, 39.5, 27.5, -3.0, -48.5, -35.0, -46.0, -60.0, -6.0]