| (324165879) | 5 | 16 | 
| 216534978 |  | a | 
| 214563 |  | b | 
| 215364 |  | 2 |  |  | A | 
| 514263 | –s | – |  | 
| 413265 | – | 3 |  | 
| 413562879 |  | c |  |  | B | 
| 312465 |  | A |  | 
| 214365879 |  | 4B | 
Start at backstroke with rounds as the 5th row of a slow six.
a = s2.3.s12.18 (20)
b = 4.s8.s11.15.16
c = 2.s5.s9.16
16 56s (0f,16b), 120 4-bell runs (20f,100b).