Don't assume that SubString has pointer and copy instead
#976
| Job | Run time |
|---|---|
| 3m 20s | |
| 1m 17s | |
| 1m 47s | |
| 1m 21s | |
| 2m 10s | |
| 5m 8s | |
| 4m 48s | |
| 1m 46s | |
| 1m 39s | |
| 1m 35s | |
| 1m 39s | |
| 41s | |
| 49s | |
| 42s | |
| 1m 12s | |
| 9m 50s | |
| 9m 47s | |
| 37s | |
| 40s | |
| 43s | |
| 53s | |
| 42s | |
| 1m 17s | |
| 1m 15s | |
| 1m 15s | |
| 1m 32s | |
| 1m 7s | |
| 1m 24s | |
| 2m 8s | |
| 1m 48s | |
| 1m 31s | |
| 1m 12s | |
| 2m 28s | |
| 1m 57s | |
| 1m 37s | |
| 1h 13m 37s |