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:
[-30, -31, 75, 43, 12, -78, 39, 74, 69, -92, -23, -22]

Ex Output:
[-30.5, 22.0, 59.0, 27.5, -33.0, -19.5, 56.5, 71.5, -11.5, -57.5, -22.5]


Ex Input:
[79, 93, 22, -12, 60, -51, 71, -59, -27, -43, -31, 60, -55]

Ex Output:
[86.0, 57.5, 5.0, 24.0, 4.5, 10.0, 6.0, -43.0, -35.0, -37.0, 14.5, 2.5]


Ex Input:
[30, -70, 43, -17, -18, -80, -84, -13, 98]

Ex Output:

[-20.0, -13.5, 13.0, -17.5, -49.0, -82.0, -48.5, 42.5]