peek(a)
peek(a)
get(a)
get(b)

peek(é)
peek(é)
get(é)
get(z)

peek(a)
peek(a)
get(a)
get_2-threw(representation_error(character))

peek_1-threw(representation_error(character))
peek_2-threw(representation_error(character))
get_1-threw(representation_error(character))
get(a)

peek(a)
peek(a)
get(a)
get_2-threw(representation_error(character))