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, 70, -70, -72, 67, 39, -45, -57, -75]

Ex Output:
[25.5, 0.0, -71.0, -2.5, 53.0, -3.0, -51.0, -66.0]


Ex Input:
[35, 54, 66, 55, 64, 42, 88, 74, -32, 37]

Ex Output:
[44.5, 60.0, 60.5, 59.5, 53.0, 65.0, 81.0, 21.0, 2.5]


Ex Input:
[71, 56, -35, 92, 13, 80, -7, 88, 59, -25, 100, 32, -65]

Ex Output:

[63.5, 10.5, 28.5, 52.5, 46.5, 36.5, 40.5, 73.5, 17.0, 37.5, 66.0, -16.5]