4, 23, 7, 4, 4; 9, 6, 2, 8, 9; 18, 2, 0, 7, 18; 6, 3, 21, 6, 3; 5, 3, 3, 28, 2; You must separate the values with comma and semicolon. After that you can write any comment (without semicolon).
Number of rows and columns:

Solving assignment problems via hungarian method