<|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 8.1 8.1
153 153 37
K
0.00 0.00 0.54
La
0.00 0.00 0.35
Cu
0.00 0.00 0.36
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
8.1 8.1 8.1
153 153 37
K
0.00 0.00 0.54
La
0.00 0.00 0.35
Cu
0.00 0.00 0.36
Identify the crystal system.