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:
[79, 42, -75, -7]

Ex Output:
[60.5, -16.5, -41.0]


Ex Input:
[-78, -89, -72, 90, -85, -78, -35]

Ex Output:
[-83.5, -80.5, 9.0, 2.5, -81.5, -56.5]


Ex Input:
[-78, 59, -90, -36, -58, 27, -58, 10, 22, 36, -65, 47]

Ex Output:

[-9.5, -15.5, -63.0, -47.0, -15.5, -15.5, -24.0, 16.0, 29.0, -14.5, -9.0]