<|im_start|>system
Please reason step by step, and put your final answer within \boxed{}.<|im_end|>
<|im_start|>user
Given the following crystal representation:
8.7 8.7 8.7
20 20 20
Ag
0.00 0.00 0.00
Sn
0.00 0.00 0.77
Pd
0.00 0.00 0.24
Pd
0.00 0.00 0.31
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
8.7 8.7 8.7
20 20 20
Ag
0.00 0.00 0.00
Sn
0.00 0.00 0.77
Pd
0.00 0.00 0.24
Pd
0.00 0.00 0.31
Identify the crystal system.