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, 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:
[33, 66, 9, -63, -67, 30, -47, -2, -26, -91]

Ex Output:
[49.5, 37.5, -27.0, -65.0, -18.5, -8.5, -24.5, -14.0, -58.5]


Ex Input:
[-70, -61, 30, 31, -7, 32, -86, -93, -62, -20, -69, 47]

Ex Output:

[-65.5, -15.5, 30.5, 12.0, 12.5, -27.0, -89.5, -77.5, -41.0, -44.5, -11.0]