Input (grade 6): His childhood names were "MatsusaburÅ" (æ 3\/4 ä é) and "Naomatsu" (ç æ 3\/4).
Output (grade 6): As a child, he was called "MatsusaburÅ" (æ 3\/4 ä é) and "Naomatsu" (ç æ 3\/4).