<|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:
8.1 7.9 3.1
83 74 22
Hg
0.63 0.62 0.32
Mo
0.63 0.62 0.46
Se
0.63 0.62 0.59
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
8.1 7.9 3.1
83 74 22
Hg
0.63 0.62 0.32
Mo
0.63 0.62 0.46
Se
0.63 0.62 0.59
Identify the crystal system.