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:
[-22, -85]

Ex Output:
[-53.5]


Ex Input:
[-61, -4, 59, 97, 77, 15, 50, -66, 99, 90, -77, 53]

Ex Output:
[-32.5, 27.5, 78.0, 87.0, 46.0, 32.5, -8.0, 16.5, 94.5, 6.5, -12.0]


Ex Input:
[82, -28, -37, 90, 14, -47, 65, 18, 0, -30, -4, 48, -18, -24, 59]

Ex Output:

[27.0, -32.5, 26.5, 52.0, -16.5, 9.0, 41.5, 9.0, -15.0, -17.0, 22.0, 15.0, -21.0, 17.5]