Imagine that you are working in a research center studying demographic data. You have a list with people's age, and you need to analyze the trends of life expectancy using the sliding average method.
Input format
list of people divided by spaces (integers). Justify; "> the size of the sliding window (integer)
Output format
a list of average ages calculated for each sliding window. Each average value should be rounded to two signs after decimal
Example
Output
70.00 75.00 80.00 85.00 90.00
Hint
There will be no clue here, decide for yourself!