10일 20일 30일 1 and 1 2 as 1 3 or 1 4 or12-- 1 5 1 4 6 or12 1 and 4 2 as 3 or 4 1 3 5 or12-- 1 6 or12 1 and 4 2 as 3 or 4 1 3 5 or12-- 1 6 or12 11위 - 20위