OTTF?SSENT는ONE/TWO/THREE/FOUR/FIVE/SIX/SEVEN/EIGHT/NINE/TEN의앞글자만딴것으로답은F/2번숫자하나옮기면10(2제곱)-1=9/3.성냥개비로NINE모양
당신은 어느 그룹입니까?