| 60 | | | | | 60 | | 1. | 70 | | | 2. | 15 60 | | 3. 12 | 100 200 300 400 500 600 | 700 800 900 1000 1500 | 2000 | 4. 30 | 500 60 | | | ＝ 70 ＋ | | ＋ ＋ ／139 | | | | | |