2354. What character can be added to both of these characters to give other characters? 安_ -> _兆

安  AN, yasu(i) - peace, cheap

兆  CHOU, kiza(shi), kiza(su) - sign, indication, symptom, sprout

Add 木:安+木 木+兆  

木  MOKU, BOKU, ki - tree

案  AN - plan, proposal

桃  TOU, momo - peach