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:
[-5, 81, 50, -12, 34, 99, -50, -91, -12, 2, 97, 2, -16, 79]

Ex Output:
[38.0, 65.5, 19.0, 11.0, 66.5, 24.5, -70.5, -51.5, -5.0, 49.5, 49.5, -7.0, 31.5]


Ex Input:
[15, -78, -76, 35, 42, 83]

Ex Output:
[-31.5, -77.0, -20.5, 38.5, 62.5]


Ex Input:
[52, 25]

Ex Output:

[38.5]