2979. What character can be added to both of these characters to give other characters? 加_ -> _毎

加 KA, kuwa(eru), kuwa(waru) - add, append, join, take part

毎 MAI, goto - every

Add 木:加+木 木+毎

木 MOKU, BOKU, ki - tree

架 KA, ka(keru), ka(karu) - hang, build (a bridge)

梅 BAI, ume - plum