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].

[4, 49]
[26.5]

[-85, 41, -29, 47, -31, -38, 91, 82]
[-22.0, 6.0, 9.0, 8.0, -34.5, 26.5, 86.5]

[-27, -56, 72, 43, -64, 53, -30, 28, -97]

[-41.5, 8.0, 57.5, -10.5, -5.5, 11.5, -1.0, -34.5]