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:
[-19, -14, -45, -75, 0]

Ex Output:
[-16.5, -29.5, -60.0, -37.5]


Ex Input:
[-63, 4, 4, 49, -83, 99, 85, -18, 11, 83, 73]

Ex Output:
[-29.5, 4.0, 26.5, -17.0, 8.0, 92.0, 33.5, -3.5, 47.0, 78.0]


Ex Input:
[-40, -95, -20, -38, -20, -2, -91, 39, 15, -4, -41, -16, -96]

Ex Output:

[-67.5, -57.5, -29.0, -29.0, -11.0, -46.5, -26.0, 27.0, 5.5, -22.5, -28.5, -56.0]