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:
[-31, 39, -47]

Ex Output:
[4.0, -4.0]


Ex Input:
[37, 34, -76, -78, -28, 59, 6, -95, 19, 27, 62, 23, 41, 13]

Ex Output:
[35.5, -21.0, -77.0, -53.0, 15.5, 32.5, -44.5, -38.0, 23.0, 44.5, 42.5, 32.0, 27.0]


Ex Input:
[-85, 27, -45, 54, 79]

Ex Output:

[-29.0, -9.0, 4.5, 66.5]