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:
[-37, 89]

Ex Output:
[26.0]


Ex Input:
[99, -28, -18, -89, -14, -80, -54, -84, -82]

Ex Output:
[35.5, -23.0, -53.5, -51.5, -47.0, -67.0, -69.0, -83.0]


Ex Input:
[38, 24, 3, 71, -62, -24, 54, 3, -4, 33, -41, -33, -31, 35]

Ex Output:

[31.0, 13.5, 37.0, 4.5, -43.0, 15.0, 28.5, -0.5, 14.5, -4.0, -37.0, -32.0, 2.0]