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:
[-49, -26, -50, -5, -69, -4, -43, 92]

Ex Output:
[-37.5, -38.0, -27.5, -37.0, -36.5, -23.5, 24.5]


Ex Input:
[59, -19, -85]

Ex Output:
[20.0, -52.0]


Ex Input:
[5, -27, -35, -14, -48, 55, 42, 68, -12, -85, 82, -30, 22]

Ex Output:

[-11.0, -31.0, -24.5, -31.0, 3.5, 48.5, 55.0, 28.0, -48.5, -1.5, 26.0, -4.0]