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, -23, -23, -16, 96, -98, 84, 76, -15, -46, -7]

Ex Output:
[-50.0, -23.0, -19.5, 40.0, -1.0, -7.0, 80.0, 30.5, -30.5, -26.5]


Ex Input:
[-80, -95, 61, -96, 44, 18, 84, -7]

Ex Output:
[-87.5, -17.0, -17.5, -26.0, 31.0, 51.0, 38.5]


Ex Input:
[-51, 19]

Ex Output:

[-16.0]