0: 12 1: 34 2: 56 3: 78 4: 90 5: 123 6: 456 7: 789 8: 8642 9: 9753 0: 12 1: 34 2: 56 3: 78 4: 90 5: 123 6: 456 7: 789 8: 8642 9: 9753