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].

[83, -58]
[12.5]

[-61, -4, 59, 97, 77, 15, 50, -66, 99, 90, -77, 53]
[-32.5, 27.5, 78.0, 87.0, 46.0, 32.5, -8.0, 16.5, 94.5, 6.5, -12.0]

[62, -27, -70, -58, 33, 11, -35, 48, 43, -95, 56, 84, 35, 70, 63]

[17.5, -48.5, -64.0, -12.5, 22.0, -12.0, 6.5, 45.5, -26.0, -19.5, 70.0, 59.5, 52.5, 66.5]