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].

[-19, 17, -76, 38, 49, -1, 98, -89, -27, 49, 6, 44, 81, 0, 80]
[-1.0, -29.5, -19.0, 43.5, 24.0, 48.5, 4.5, -58.0, 11.0, 27.5, 25.0, 62.5, 40.5, 40.0]

[0, -85, 1, 64, 53, -80, 18, 45, 57, -84, -11, 80, -23, 91]
[-42.5, -42.0, 32.5, 58.5, -13.5, -31.0, 31.5, 51.0, -13.5, -47.5, 34.5, 28.5, 34.0]

[-20, -35, -95]

[-27.5, -65.0]