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:
[75, 67, 18, -15, -51, -80, -73]

Ex Output:
[71.0, 42.5, 1.5, -33.0, -65.5, -76.5]


Ex Input:
[67, 45, 59, -50, -28, -70, -84, 69, 72, 53]

Ex Output:
[56.0, 52.0, 4.5, -39.0, -49.0, -77.0, -7.5, 70.5, 62.5]


Ex Input:
[95, 60, -45, -19, -64, 34, -13, -90, 70]

Ex Output:

[77.5, 7.5, -32.0, -41.5, -15.0, 10.5, -51.5, -10.0]