<|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:
3.4 3.4 7.6
90 90 113
Tl
0.85 0.00 0.82
Tl
0.85 0.00 0.74
Cu
0.00 0.00 0.78
B
0.00 0.00 0.00
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.4 3.4 7.6
90 90 113
Tl
0.85 0.00 0.82
Tl
0.85 0.00 0.74
Cu
0.00 0.00 0.78
B
0.00 0.00 0.00
Identify the crystal system.