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:
[-21, 10, 33, 79, -27, 13, -24, 64, -2, 23]

Ex Output:
[-5.5, 21.5, 56.0, 26.0, -7.0, -5.5, 20.0, 31.0, 10.5]


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:
[20, -44, 61, -32, -42, -98, -66, 29, -22, -83, 26, 11, 21]

Ex Output:

[-12.0, 8.5, 14.5, -37.0, -70.0, -82.0, -18.5, 3.5, -52.5, -28.5, 18.5, 16.0]