<|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:
7.9 7.9 7.9
141 141 55
K
0.58 0.00 0.49
K
0.00 0.58 0.49
Ba
0.00 0.00 0.99
Cu
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
7.9 7.9 7.9
141 141 55
K
0.58 0.00 0.49
K
0.00 0.58 0.49
Ba
0.00 0.00 0.99
Cu
0.00 0.00 0.00
Identify the crystal system.