Usage: python pairer.py <cohortfile> <day>

If a and b are two distinct students in a cohort with n students, then a and b are guaranteed to be paired together for exactly one i in the range 1 <= i =< (n-1)

Example:

$ python src/pairer.py etc/seattle3 17
Recommended partnerships - day 17 of 17:
Alexander, Timothy
Bryan, Tetyana
Cindy, Swathi
Crystal, Srikanth
Daniel G, Monika
Daniel T, Miles
Eric, Justin
Everett, John
Haizhen, Yeongcheon