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:
[-76, -32, -40, 62, 72, 71, 3, -22]

Ex Output:
[-54.0, -36.0, 11.0, 67.0, 71.5, 37.0, -9.5]


Ex Input:
[64, -5, -29]

Ex Output:
[29.5, -17.0]


Ex Input:
[-37, 95, -1, -64, 41, -45, 100, -55, 22, -35, 53, 74]

Ex Output:

[29.0, 47.0, -32.5, -11.5, -2.0, 27.5, 22.5, -16.5, -6.5, 9.0, 63.5]