A & B having share capital of Rs.10,000 each, share profits and losses equally. They admit C as an equal partner and goodwill was valued as Rs.30,000 (book value NIL). C is to bring in Rs.20,000 as his capital and the necessary cash towards his share of Goodwill. Goodwill Account will not be shown in the books. If profit on revaluation is Rs.13,000, find the closing balance of the capital account.