A.
Partner workout for time:

Wattbike 10 000m
Row 5000m
Ski 3000m

or

Ski 3000m
Row 5000m
WattBike 10 000m

Only one works at the time, and you can divide as you want!

B.
Extra, 4 rounds:

10 push up or HSPU
10 pull-ups or strict pull-up