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:
[-8, -54, 31, -40, 58, -2, 45, -86, -62, -14, 94]

Ex Output:
[-31.0, -11.5, -4.5, 9.0, 28.0, 21.5, -20.5, -74.0, -38.0, 40.0]


Ex Input:
[40, 77, 36, 50, 36, 89, -13, 75, -57, -13, 15, 42, 72, 21]

Ex Output:
[58.5, 56.5, 43.0, 43.0, 62.5, 38.0, 31.0, 9.0, -35.0, 1.0, 28.5, 57.0, 46.5]


Ex Input:
[62, -9, 30, 91, 84, 87, 21, 87, 19, -66, -4, -57, 22, -1]

Ex Output:

[26.5, 10.5, 60.5, 87.5, 85.5, 54.0, 54.0, 53.0, -23.5, -35.0, -30.5, -17.5, 10.5]