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:
[34, -47, 92, -36, 63, 63, -15, 93, 3, -77, -86, -12, -86]

Ex Output:
[-6.5, 22.5, 28.0, 13.5, 63.0, 24.0, 39.0, 48.0, -37.0, -81.5, -49.0, -49.0]


Ex Input:
[24, -15, -59, 82, -84, 54, -33, 88, -74, 57, -22, 1]

Ex Output:
[4.5, -37.0, 11.5, -1.0, -15.0, 10.5, 27.5, 7.0, -8.5, 17.5, -10.5]


Ex Input:
[-70, -34, -71, -15, 20, 31, -15, -49, -31, -80, -50]

Ex Output:

[-52.0, -52.5, -43.0, 2.5, 25.5, 8.0, -32.0, -40.0, -55.5, -65.0]