<|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:
8.3 8.2 3.0
81 77 20
K
0.87 0.31 0.14
Tl
0.87 0.31 0.03
Os
0.87 0.31 0.77
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
8.3 8.2 3.0
81 77 20
K
0.87 0.31 0.14
Tl
0.87 0.31 0.03
Os
0.87 0.31 0.77
Identify the crystal system.