The challenge is to assign people to tasks randomly~. From stdin you get 2 lines. Line one is a comma-separated list of names. Line 2 is a comma-separated list of jobs. The output required is one line per task person combo. The line should be formatted as Name:task. If there are not enough people for jobs or vice verse then they will not be output.
~ Randomly is defined as each run with the same input has a reasonably different output.
Bob:Windows Susan:Bins Kim:Floor