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:
[42, -88, 79, -30, 60, 0, -35, -9, -72, 97, -57, -41, -43]

Ex Output:
[-23.0, -4.5, 24.5, 15.0, 30.0, -17.5, -22.0, -40.5, 12.5, 20.0, -49.0, -42.0]


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:
[-54, -6, -49, 76, 99, 4, -11, -79]

Ex Output:

[-30.0, -27.5, 13.5, 87.5, 51.5, -3.5, -45.0]