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:
[-77, 14, 56, -86, -9, 71, -2, -1, -74, 37, 39, 53]

Ex Output:
[-31.5, 35.0, -15.0, -47.5, 31.0, 34.5, -1.5, -37.5, -18.5, 38.0, 46.0]


Ex Input:
[29, -54, 81, -85, 51, -12, -11, -68, 38, 83, 46]

Ex Output:
[-12.5, 13.5, -2.0, -17.0, 19.5, -11.5, -39.5, -15.0, 60.5, 64.5]


Ex Input:
[-69, -49, -17, 89, 40, -5, -100, -27, -25, -84, 70, -50, 48, 67, -44]

Ex Output:

[-59.0, -33.0, 36.0, 64.5, 17.5, -52.5, -63.5, -26.0, -54.5, -7.0, 10.0, -1.0, 57.5, 11.5]