SEOUL, South Korea — As her two North Korean daughters, both in their 70s, wailed outside her bus, 99-year-old Han Shin-ja pounded the windows from inside in despair, moving her lips to say “don’t cry” and “farewell.” As her bus left for South Korea on Wednesday, Han’s daughters chased the moving vehicle before being stopped by a North Korean official, a predictable but no less heart-wrenching departure that’s likely to be the last time they see each other after decades of separation. Han’s family was among hundreds of elderly Koreans who tearfully said their final goodbyes at the end of the first round of rare reunions between relatives separated by the 1950-53 Korean War. About 200 South Koreans returned home after the end of three days of meetings with North Korean relatives at the North’s Diamond Mountain resort.