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:
[-18, -74, -7, 59, -76, -57, -99, 65]

Ex Output:
[-46.0, -40.5, 26.0, -8.5, -66.5, -78.0, -17.0]


Ex Input:
[68, -66]

Ex Output:
[1.0]


Ex Input:
[5, -78, -6, -5, 17, 40, 56, -99, 76, 44]

Ex Output:

[-36.5, -42.0, -5.5, 6.0, 28.5, 48.0, -21.5, -11.5, 60.0]