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:
[22, -56]

Ex Output:
[-17.0]


Ex Input:
[-85, 71, 61, 74, -76, -61, 49, -68, -71, -45, -36, -3, 85, -60]

Ex Output:
[-7.0, 66.0, 67.5, -1.0, -68.5, -6.0, -9.5, -69.5, -58.0, -40.5, -19.5, 41.0, 12.5]


Ex Input:
[67, -29, -13, -76, 81, 21, -93, 95, 14, -32, -29, 53]

Ex Output:

[19.0, -21.0, -44.5, 2.5, 51.0, -36.0, 1.0, 54.5, -9.0, -30.5, 12.0]