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].

Ex Input:
[16, 35, 54, -67, 0, -98, 43, -5, 30]

Ex Output:
[25.5, 44.5, -6.5, -33.5, -49.0, -27.5, 19.0, 12.5]


Ex Input:
[9, 43, 32, 49, 89, -91, -51, -62, 48, -80, -25, -35, 27, -12]

Ex Output:
[26.0, 37.5, 40.5, 69.0, -1.0, -71.0, -56.5, -7.0, -16.0, -52.5, -30.0, -4.0, 7.5]


Ex Input:
[20, -40, -63, 94, -53, -6, 18, 47, -18, -20, -94, 71, 17, 26]

Ex Output:

[-10.0, -51.5, 15.5, 20.5, -29.5, 6.0, 32.5, 14.5, -19.0, -57.0, -11.5, 44.0, 21.5]