不妨令乙丙在甲左侧,先排乙丙两人,有A22种站法,再取一人站左侧有C41×A22种站法,余下三人站右侧,有A33种站法考虑到乙丙在右侧的站法,故总的站法总数是2×A22×C41×A22×A33=192故答案为192