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:
[-7, 95, -59, -100, -98, -7, 50, 93, 59, -78, 31, -79]

Ex Output:
[44.0, 18.0, -79.5, -99.0, -52.5, 21.5, 71.5, 76.0, -9.5, -23.5, -24.0]


Ex Input:
[-23, 69, -75]

Ex Output:
[23.0, -3.0]


Ex Input:
[-17, -13, 40, 6, 79, 93, 35, 43, 57, -25, 56, -29, -14, -36, 90]

Ex Output:

[-15.0, 13.5, 23.0, 42.5, 86.0, 64.0, 39.0, 50.0, 16.0, 15.5, 13.5, -21.5, -25.0, 27.0]