Equal (0): Everything in this space must be equal to 0. The answer is 2-0, placed horizontally; 5-0, placed horizontally.
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[사설]주한미군 전력 차출, 안보 공백 없는 ‘동맹 현대화’ 첫 시험대
(map (lambda (x) (substring x 1 (- (string-length x) 1)))