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].

[53, 13, 15]
[33.0, 14.0]

[-99, -62, -46, -87, -99, -49, -24, -26, -22, 61, -48, -25, -59, -51, -85]
[-80.5, -54.0, -66.5, -93.0, -74.0, -36.5, -25.0, -24.0, 19.5, 6.5, -36.5, -42.0, -55.0, -68.0]

[-30, -35, -64, -61, 8, -35, -37, 58, -27, -96, -97]

[-32.5, -49.5, -62.5, -26.5, -13.5, -36.0, 10.5, 15.5, -61.5, -96.5]