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:
[87, 22, 13, 9, -28, -51, -58, -11, 40, 60, 25]

Ex Output:
[54.5, 17.5, 11.0, -9.5, -39.5, -54.5, -34.5, 14.5, 50.0, 42.5]


Ex Input:
[21, 0, 32, 60, 36, -98, -33, 36, 23]

Ex Output:
[10.5, 16.0, 46.0, 48.0, -31.0, -65.5, 1.5, 29.5]


Ex Input:
[-83, -32, -51, -42, -51, -83, 40]

Ex Output:

[-57.5, -41.5, -46.5, -46.5, -67.0, -21.5]