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:
[-12, -11, -13, 37, 73, -7, -15, 62, 1, 5, 93, -30, 21, 29, 99]

Ex Output:
[-11.5, -12.0, 12.0, 55.0, 33.0, -11.0, 23.5, 31.5, 3.0, 49.0, 31.5, -4.5, 25.0, 64.0]


Ex Input:
[27, -75, 71, -18, -67, -62, 95, 3, 10]

Ex Output:
[-24.0, -2.0, 26.5, -42.5, -64.5, 16.5, 49.0, 6.5]


Ex Input:
[-11, 14, 86, -95, 97, -54, -45, 71, 45, -57, 40, -7, -76, -100]

Ex Output:

[1.5, 50.0, -4.5, 1.0, 21.5, -49.5, 13.0, 58.0, -6.0, -8.5, 16.5, -41.5, -88.0]