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].

Q: [1, 77, 55, -37, -65, 80, 31, -37, -61, 3, -80]

A: [39.0, 66.0, 9.0, -51.0, 7.5, 55.5, -3.0, -49.0, -29.0, -38.5]
****
Q: [30, 4, 19, 28, -28, 81, 78, -64, -4, 6, -33, 44, -76]

A: [17.0, 11.5, 23.5, 0.0, 26.5, 79.5, 7.0, -34.0, 1.0, -13.5, 5.5, -16.0]
****
Q: [-21, 70]

A:
[24.5]
****