<|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:
12.3 12.3 12.3
15 15 15
Hf
0.00 0.00 0.42
Hf
0.00 0.00 1.00
Hf
0.00 0.00 0.41
Hf
0.00 0.00 0.98
Au
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
12.3 12.3 12.3
15 15 15
Hf
0.00 0.00 0.42
Hf
0.00 0.00 1.00
Hf
0.00 0.00 0.41
Hf
0.00 0.00 0.98
Au
0.00 0.00 0.00
Identify the crystal system.