<|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:
3.7 5.1 4.0
90 90 90
Cr
0.00 0.00 0.00
Ag
0.81 0.57 0.03
Ag
0.93 0.57 0.99
Se
0.87 0.00 0.01
Identify the crystal system.<|im_end|>
<|im_start|>assistant
Given the following crystal representation:
3.7 5.1 4.0
90 90 90
Cr
0.00 0.00 0.00
Ag
0.81 0.57 0.03
Ag
0.93 0.57 0.99
Se
0.87 0.00 0.01
Identify the crystal system.