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:
[-12, -20, -43, 3, -38, -4, 34]

Ex Output:
[-16.0, -31.5, -20.0, -17.5, -21.0, 15.0]


Ex Input:
[-79, 66, 43, -67, -68, -15, 18, 22, -100, 77, -4, 30, 22]

Ex Output:
[-6.5, 54.5, -12.0, -67.5, -41.5, 1.5, 20.0, -39.0, -11.5, 36.5, 13.0, 26.0]


Ex Input:
[-20, 26, 35]

Ex Output:

[3.0, 30.5]