<|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:
2.6 2.6 9.0
90 90 102
Na
0.00 0.00 0.49
Be
0.00 0.00 0.00
Tc
0.61 0.00 0.18
Tc
0.61 0.00 0.80
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
2.6 2.6 9.0
90 90 102
Na
0.00 0.00 0.49
Be
0.00 0.00 0.00
Tc
0.61 0.00 0.18
Tc
0.61 0.00 0.80
Identify the crystal system.