2208. What character can be added to both of these characters to give other characters? 竹_ -> _尺

竹  CHIKU, take - bamboo

尺  SHAKU - measure, length

Add 馬:竹+馬 馬+尺   

馬  BA, uma, ma  - horse

篤  TOKU - serious, cordial

駅  EKI - station