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:
[-84, 6, -57, -27, 56, -84, -35, -93, 88, 54, 22, -34, 45]

Ex Output:
[-39.0, -25.5, -42.0, 14.5, -14.0, -59.5, -64.0, -2.5, 71.0, 38.0, -6.0, 5.5]


Ex Input:
[-67, -78, -72, 9, -90, 64, 13, -2, -61, 45, 36, -7, -25, 68]

Ex Output:
[-72.5, -75.0, -31.5, -40.5, -13.0, 38.5, 5.5, -31.5, -8.0, 40.5, 14.5, -16.0, 21.5]


Ex Input:
[-39, 94, 85, -24, 84, 54, 31, -88, -99, -75, -32, -8, -55, -43]

Ex Output:

[27.5, 89.5, 30.5, 30.0, 69.0, 42.5, -28.5, -93.5, -87.0, -53.5, -20.0, -31.5, -49.0]