| 60 | |
| 5 8 | |
| 1 10 | |
| 1 100 | |
| 1234 1234 | |
| 1000000007 1000000007 | |
| 999999500000 1000000000000 | |
| 100 500000 | |
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| 998106243723 998106743714 | |
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| 993011033378 993011533371 | |