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:
[58, 76, 12, -55, 74, 15, -81]

Ex Output:
[67.0, 44.0, -21.5, 9.5, 44.5, -33.0]


Ex Input:
[-68, 93, -7, 31, -45, -70, -28, 78]

Ex Output:
[12.5, 43.0, 12.0, -7.0, -57.5, -49.0, 25.0]


Ex Input:
[46, -32, 92]

Ex Output:

[7.0, 30.0]