BufferedReader

//Java 用bufferReader 读取控制台输出的内容，并转换成整形，定义异常


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;


public class BufferReader {
public static void main(String[] args) throws NumberFormatException, IOException {
	BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
	    int a;
	    a = Integer.parseInt(input.readLine());
	    System.out.println(a);
}
}