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:
[19, -40, -19, 7, 57, 87, -71, 17, 29, 60, 14, 61, 10, 71, 93]

Ex Output:
[-10.5, -29.5, -6.0, 32.0, 72.0, 8.0, -27.0, 23.0, 44.5, 37.0, 37.5, 35.5, 40.5, 82.0]


Ex Input:
[-17, -67, -20, -30, 91, 51, -35, -90, 6, 93, -32, -97, 98, -11]

Ex Output:
[-42.0, -43.5, -25.0, 30.5, 71.0, 8.0, -62.5, -42.0, 49.5, 30.5, -64.5, 0.5, 43.5]


Ex Input:
[16, -44, 69, -41, 64, 23, -35, 3, 92, 1, 24, 84, 98]

Ex Output:

[-14.0, 12.5, 14.0, 11.5, 43.5, -6.0, -16.0, 47.5, 46.5, 12.5, 54.0, 91.0]