| A | B | C |
| D | E | F |
Exercise 2.
| A | D |
| B | E |
| C | F |
Exercise 3.
| Title goes here | ||
| A | C | E |
| B | D | F |
Exercise 4.
| Title goes here | A | D |
| B | E | |
| C | F |
Exercise 5.
| Title goes here | A | D |
| B | E | |
| C | F |
Exercise 6.
| Title goes here | A | D |
| B | E | |
| C | F |
Exercise 7.
| Title goes here | A | B | ||
| C | D | E | F | G |
| H | I | J | ||
| K | L | M | N | O |