Solving Heat Engine Problem: Power Output Calculation

[abro369]

Homework Statement

The hot reservoir of a heat engine is steam at 100 while the cold reservoir is ice at 0. In 1.3 of operation, 12 of steam condenses and 59 of ice melts.
What is the power output of the heat engine?

Homework Equations

W=Q_h - Q_c
n=W/Q_h=1 - (T_c/T_h)
Q=ML

The Attempt at a Solution

All I could think to do was solve for the thermal coefficient.
n=1-(273/373)

I'm not sure where to go from here.

 

[Redbelly98]

Homework Statement

The hot reservoir of a heat engine is steam at 100 while the cold reservoir is ice at 0. In 1.3 of operation, 12 of steam condenses and 59 of ice melts.
What is the power output of the heat engine?

Please tell us what units go with these numbers!
Okay, it's fairly obvious the temperatures are in degrees Celsius, but you do need to tell us what units go with the 1.3, 12, and 59.

Hint: the condensing and melting info is useful for finding Qh and Qc.