ടോപ്പോളജിക്കൽ സോർട്ടിംഗ് എന്ന് നിങ്ങൾ ആദ്യം ചെയ്യേണ്ടതുണ്ട്; തുടർന്ന് ഇടത്തുനിന്ന് വലത്തോട്ട് നിങ്ങൾ സഞ്ചരിക്കണം.
మీరు మొదట టోపోలాజికల్ సార్టింగ్ అని చేస్తారు. అప్పుడు ఎడమ నుండి కుడికి మీరు ప్రయాణించాలి.