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:
[63, 15, 19, 71, 19, -5, 87, -32, -77, 76, -97, -92]

Ex Output:
[39.0, 17.0, 45.0, 45.0, 7.0, 41.0, 27.5, -54.5, -0.5, -10.5, -94.5]


Ex Input:
[-15, -37, -91, -88, -52, -30, 63, 69, -36, 41, 39, -49, 7, -57, -37]

Ex Output:
[-26.0, -64.0, -89.5, -70.0, -41.0, 16.5, 66.0, 16.5, 2.5, 40.0, -5.0, -21.0, -25.0, -47.0]


Ex Input:
[-84, 91, 3, 6, -3, 72, -49, 13, 19, 2, -59, 45, -17, 78]

Ex Output:

[3.5, 47.0, 4.5, 1.5, 34.5, 11.5, -18.0, 16.0, 10.5, -28.5, -7.0, 14.0, 30.5]