| | | | | | 1. | | | | | | | | | | | | | | | 2. | | | | | | | | | | | | | | | | | | | | 3. | | | | | 1 3 | 40 60 1 | 20 2 30 | 3 40 | 3 18 | 13 | | | | 4. | | | | | | | C | D | | D | | | | | | | | | | |