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:
[-69, 63, 47]

Ex Output:
[-3.0, 55.0]


Ex Input:
[82, -83, 7, 85, -54, 44, 42, 3, -71, 95, 59, -77, -32, -7, -96]

Ex Output:
[-0.5, -38.0, 46.0, 15.5, -5.0, 43.0, 22.5, -34.0, 12.0, 77.0, -9.0, -54.5, -19.5, -51.5]


Ex Input:
[-27, -7, 61, 66, 78, -43, -99, 20, 71, -84, -75, -78, 17, 39, -74]

Ex Output:

[-17.0, 27.0, 63.5, 72.0, 17.5, -71.0, -39.5, 45.5, -6.5, -79.5, -76.5, -30.5, 28.0, -17.5]