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:
[36, -53]

Ex Output:
[-8.5]


Ex Input:
[44, 85, 40, 93]

Ex Output:
[64.5, 62.5, 66.5]


Ex Input:
[-70, -7, 51, 41, 31, 40, 11]

Ex Output:

[-38.5, 22.0, 46.0, 36.0, 35.5, 25.5]