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].

[-16, 54, 42]
[19.0, 48.0]

[6, 44, -61, -38, -97, -71, -15, 82, -43, -5, -75, 15, 58]
[25.0, -8.5, -49.5, -67.5, -84.0, -43.0, 33.5, 19.5, -24.0, -40.0, -30.0, 36.5]

[-2, 54, 35, -67]

[26.0, 44.5, -16.0]