Each of the 51 .txt files represents one subset of all users' passwords observed during the experiment period. "yahoo-all.txt" includes all users; every other file represents a strict subset of that group. Each file is a series of lines of the format: FREQUENCY #OBSERVATIONS ... with FREQUENCY in descending order. For example, the file: 3 1 2 1 1 3 would represent a the frequency list (3, 2, 1, 1, 1), that is, one password...