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:
[6, 44, -61, -38, -97, -71, -15, 82, -43, -5, -75, 15, 58]

Ex Output:
[25.0, -8.5, -49.5, -67.5, -84.0, -43.0, 33.5, 19.5, -24.0, -40.0, -30.0, 36.5]


Ex Input:
[-36, 17, -25, -21, 45, 34, -39, 21, 71]

Ex Output:
[-9.5, -4.0, -23.0, 12.0, 39.5, -2.5, -9.0, 46.0]


Ex Input:
[28, -74]

Ex Output:

[-23.0]