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:
[78, 3, 3, 50, 80, -76, -73, -20, -71, -29, -47, 4]

Ex Output:
[40.5, 3.0, 26.5, 65.0, 2.0, -74.5, -46.5, -45.5, -50.0, -38.0, -21.5]


Ex Input:
[-47, 58, 28]

Ex Output:
[5.5, 43.0]


Ex Input:
[35, -41, -24, -58, -14]

Ex Output:

[-3.0, -32.5, -41.0, -36.0]