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:
[-51, 1, -77, -80, 33, -42, 41, 86, -18, 58]

Ex Output:
[-25.0, -38.0, -78.5, -23.5, -4.5, -0.5, 63.5, 34.0, 20.0]


Ex Input:
[-82, -46, -50, 84, 94, 78, -5, -49, -60, 13, 6, 68]

Ex Output:
[-64.0, -48.0, 17.0, 89.0, 86.0, 36.5, -27.0, -54.5, -23.5, 9.5, 37.0]


Ex Input:
[-40, 7, 4, -62]

Ex Output:

[-16.5, 5.5, -29.0]