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:
[-84, -19]

Ex Output:
[-51.5]


Ex Input:
[64, -46, 87, -20, -46, -57, -4, -10]

Ex Output:
[9.0, 20.5, 33.5, -33.0, -51.5, -30.5, -7.0]


Ex Input:
[-100, 49, -40, -41, 62, 58, 41]

Ex Output:

[-25.5, 4.5, -40.5, 10.5, 60.0, 49.5]