after:
after 10 comes eleven
after 15 comes sixteen
after 18 comes nineteen
after 14 comes fifteen
after 12 comes thirteen
after 17 comes eighteen
after 11comes twelve
after 13 comes fourteen
after 16 comes seventeen
before:
before 16 comes fifteen
before 13 comes twelve
before 11 comes ten
before 17 comes sixteen
before 12 comes eleven
before 14 comes thirteen
before 18 comes seventeen
before 15 comes fourteen
before 10 comes nine
before 19 comes eighteen.
after: eleven, sixteen, nineteen, fifteen, thirteen, eighteen, twelve, fourteen, seventeen
before: fifteen, twelve, ten, sixteen, eleven, thirteen, seventeen, fourteen, nine, eighteen.
