11 | 20 23 | | 11 20 23 | | 6 8 | 6 7 | | | 11 20 8 23 20 | 0.1~2.4 | | | 2.5 ~ 4.9 | | 5.0 ~ 9.9 | 11 20 21 | 11 20 8 22 20 | | 6 8 | 8 10 11 | 20 8 23 20 | 6 7 | 7 8 | |