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:
[-64, -46, 21, -97, -86]

Ex Output:
[-55.0, -12.5, -38.0, -91.5]


Ex Input:
[-41, -35]

Ex Output:
[-38.0]


Ex Input:
[-20, -45, -32, 56, -90, -98, 66, 82]

Ex Output:

[-32.5, -38.5, 12.0, -17.0, -94.0, -16.0, 74.0]