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:
[79, 37]

Ex Output:
[58.0]


Ex Input:
[82, -6, -31, 31, 30]

Ex Output:
[38.0, -18.5, 0.0, 30.5]


Ex Input:
[91, -80, 10, 50, 74, -57, 12, -33, 25, 85, -24, 84, -70, -20]

Ex Output:

[5.5, -35.0, 30.0, 62.0, 8.5, -22.5, -10.5, -4.0, 55.0, 30.5, 30.0, 7.0, -45.0]