333-530

Do you mean 333 − 530? If so, the result is -197 (since 530 − 333 = 197, so 333 − 530 = -197).

If you meant the range from 333 to 530 (inclusive), there are 530 − 333 + 1 = 198 numbers.

Want me to show any other interpretations or follow-up problems?