Submission #112440

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Source Code Expand

import java.io.IOException;
import java.io.InputStream;
 
 
public class Main {
	private static  InputStream is = null;

	static {
		is = System.in;
	}

	/**
	* @param args
	*/
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		System.out.println(parseNum()-parseNum());
	}

	private static int parseNum() {
		try {
			int	buf = 0;
			int	num = 0;

			// 0～9以外は読み飛ばす
			while ((buf = is.read()) != -1 && !((buf >= '0' && buf <= '9')));
			num = buf-'0';
			while (true) {
				buf = is.read();
				if (buf >= '0' && buf <= '9') {
					num = num * 10 + (buf - '0');
				} else {
					return num;
				}
			}
		} catch (IOException e) {}
		return -1;
	}
}

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