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:
[-68, -54, 55]

Ex Output:
[-61.0, 0.5]


Ex Input:
[1, 64, -12, -75, 99, 70, -83]

Ex Output:
[32.5, 26.0, -43.5, 12.0, 84.5, -6.5]


Ex Input:
[51, -35, 22, -95, 4, -93, 15, -65, 74, 17, -13, 80, 35]

Ex Output:

[8.0, -6.5, -36.5, -45.5, -44.5, -39.0, -25.0, 4.5, 45.5, 2.0, 33.5, 57.5]