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:
[36, -61, 50, 72, 12, 9]

Ex Output:
[-12.5, -5.5, 61.0, 42.0, 10.5]


Ex Input:
[-67, -78, -72, 9, -90, 64, 13, -2, -61, 45, 36, -7, -25, 68]

Ex Output:
[-72.5, -75.0, -31.5, -40.5, -13.0, 38.5, 5.5, -31.5, -8.0, 40.5, 14.5, -16.0, 21.5]


Ex Input:
[58, 53, -49, -41, -48, -19, -86, 95, -3, -77, -52, 1, -37]

Ex Output:

[55.5, 2.0, -45.0, -44.5, -33.5, -52.5, 4.5, 46.0, -40.0, -64.5, -25.5, -18.0]