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:
[85, 64]

Ex Output:
[74.5]


Ex Input:
[-80, -95, 61, -96, 44, 18, 84, -7]

Ex Output:
[-87.5, -17.0, -17.5, -26.0, 31.0, 51.0, 38.5]


Ex Input:
[85, -24, 69, 81, 95, -64, 4, -12, -49, 25, -79, 23, -21]

Ex Output:

[30.5, 22.5, 75.0, 88.0, 15.5, -30.0, -4.0, -30.5, -12.0, -27.0, -28.0, 1.0]