SEOUL, South Korea (AP) — Former top prosecutor Yoon Suk Yeol takes office as South Korea’s president on Tuesday, facing a tougher mix of foreign policy and domestic challenges than other recent South Korean leaders encountered at the start of their presidencies. Yoon’s single, five-year term begins at midnight Monday before he takes the oath of office Tuesday morning at a formal ceremony in Seoul. Since winning election in March, Yoon, a conservative who advocates a more hard-line approach toward North Korea, has been denied a honeymoon period.