Two iron bolts, one at 100 degrees Celcius with a m of 82.9g...?

Two iron bolts, one at 100. �C with a m of 82.9g, the other at 56�C with a m of 96.9g, are placed in an insulated container. uming the heat capacity of the container is negligible, what is the final Celsius temperature inside the container (c of iron = 0.450 J/g�K)?