description Problem history Submissions question_mark Qna how_to_vote Vote #1375 upload 18 done 12 how_to_reg 11 크리스마스카드 timer 1s memory - MB upload Attempts 18 times Solved 12 times Solvers 11 people Acceptance Rate 66.7% monitoring Average Runtime 2500.3ms Average Memory 3903.3KB Average Code Length 396.2B No. Submitter Result Time Memory Length Language Submitted