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
0: 12
1: 34
2: 0
3: 0
4: 0
5: 0
6: 0
7: 0
8: 0
9: 0