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, -99, 38, 19, -6, -25, 95, -11, -96]

Ex Output:
[-88.0, -30.5, 28.5, 6.5, -15.5, 35.0, 42.0, -53.5]


Ex Input:
[-34, 7, -83, 25, -31, 7]

Ex Output:
[-13.5, -38.0, -29.0, -3.0, -12.0]


Ex Input:
[-17, -67, -20, -30, 91, 51, -35, -90, 6, 93, -32, -97, 98, -11]

Ex Output:

[-42.0, -43.5, -25.0, 30.5, 71.0, 8.0, -62.5, -42.0, 49.5, 30.5, -64.5, 0.5, 43.5]