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module pr3571573;
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wire [6:1] top_io;
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data_test dut(.io(top_io));
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initial begin
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#1 $display("%b", top_io);
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end
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endmodule
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module data_test(inout [6:1] io);
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wire [4:1] io1;
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wire io2;
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wire io3;
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assign io = {io3, io2, io1};
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assign io1[3:2] = 2'b01;
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endmodule
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