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:
[33, 15, -60, -30, 13, 49]

Ex Output:
[24.0, -22.5, -45.0, -8.5, 31.0]


Ex Input:
[44, -69, 2, -20, -20]

Ex Output:
[-12.5, -33.5, -9.0, -20.0]


Ex Input:
[-66, -33, -16, 24, -99, -52, -50, -32, 85, -89, -72]

Ex Output:

[-49.5, -24.5, 4.0, -37.5, -75.5, -51.0, -41.0, 26.5, -2.0, -80.5]