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:
[40, 71, -1, -56, -2, 41, 15, -55, -62, 64, 100]

Ex Output:
[55.5, 35.0, -28.5, -29.0, 19.5, 28.0, -20.0, -58.5, 1.0, 82.0]


Ex Input:
[-21, 13, 42, 12, 48, 35, -98, -25, -7, 21, 35, -24, -45]

Ex Output:
[-4.0, 27.5, 27.0, 30.0, 41.5, -31.5, -61.5, -16.0, 7.0, 28.0, 5.5, -34.5]


Ex Input:
[25, -44, -76, 85, -16, 86, -69, 21, -85, -23, 21]

Ex Output:

[-9.5, -60.0, 4.5, 34.5, 35.0, 8.5, -24.0, -32.0, -54.0, -1.0]