import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.zip.GZIPOutputStream;
public class MainClass {
public final static String GZIP_SUFFIX = ".gz";
public static void main(String[] args) {
for (int i = 0; i < args.length; i++) {
try {
InputStream fin = new FileInputStream(args[i]);
OutputStream fout = new FileOutputStream(args[i] + GZIP_SUFFIX);
GZIPOutputStream gzout = new GZIPOutputStream(fout);
for (int c = fin.read(); c != -1; c = fin.read()) {
gzout.write(c);
}
gzout.close();
} catch (IOException ex) {
System.err.println(ex);
}
}
}
}