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import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
public class Main {
public static void main(String[] argv) throws Exception {
BufferedInputStream fin = new BufferedInputStream(new FileInputStream("in.dat"));
BufferedOutputStream fout = new BufferedOutputStream(new FileOutputStream("out.dat"));
int i;
do {
i = fin.read();
if (i != -1)
fout.write(i);
} while (i != -1);
fin.close();
fout.close();
}
}
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