Shannon Corporation had profit of $250,000 and paid dividends to common shareholders of $50,000 in 2021. The weighted average number of shares issued in 2021 was 50,000 shares. Shannon Corporation's common shares are selling for $40 per share on the Toronto Stock Exchange. Shannon Corporation reported net sales on account of $1,900,000. The average net accounts receivable are $610,000. What was Shannon Corporation's days' sales in receivables for 2021?