sdg 7: +,sdg 13: +,sdg 16: -,sdg 5: -,sdg 12: +,sdg 10: -,sdg 6: +,sdg 3:+,sdg 2: -,sdg 1: +,sdg 9: +,sdg 13: -,sdg14:-,sdg 17: -,sdg 12: -,sdg 9: -,sdg 11: +,sdg 15: -,sdd 2: +,sdg 8: -,sdg 6: -,sdg 7: -,sdg 14: -,sdg 10: +,sdg 14: +,sdg 15: +,sdg 4: +,sdg 16: +,sdg 17: +,sdg 1: -,sdg 11: -,sdg 5: +,sdg 3: -,sdg 8: +,sdg 2: +,