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import java.io.IOException;
import java.io.PipedReader;
import java.io.PipedWriter;
public class Main {
public static void main(String[] args) throws IOException {
PipedWriter pw = new PipedWriter();
PipedReader pr = new PipedReader(pw);
int ch;
try {
for (int i = 0; i < 15; i++)
pw.write(" A" + i + '\n');
while ((ch = pr.read()) != -1)
System.out.print((char) ch);
} catch (IOException e) {
}
}
}
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