Add letters function for PcGroupElem
#16923
| Job | Run time |
|---|---|
| 32m 14s | |
| 1h 33m 30s | |
| 30m 7s | |
| 1h 0m 41s | |
| 36m 22s | |
| 1h 14m 37s | |
| 32m 9s | |
| 45m 24s | |
| 15m 16s | |
| 1h 23m 13s | |
| 53m 14s | |
| 1h 41m 12s | |
| 1h 6m 3s | |
| 1h 12m 22s | |
| 46m 58s | |
| 14m 46s | |
| 15m 19s | |
| 54m 32s | |
| 1h 6m 8s | |
| 16h 34m 7s |