/*
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	インクリメント Increment_01
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*/
import java.io.*;

class Increment_01 {
	public static void main(String[] args) throws Exception {
		
		int a,b;
		
		BufferedReader inp=new BufferedReader
			(new InputStreamReader(System.in));
		String keybd;

		System.out.print("インクリメントの例\n");

		System.out.print("ａはいくつ-->");
		keybd=inp.readLine();
		a=Integer.parseInt(keybd);
		
		System.out.print("ａ＝"+a+"\n");
		
		++a;
		System.out.print("\n＋＋ａ　実行後\n");
		System.out.print("ａ＝"+a+"\n");
		
		a++;
		System.out.print("\nａ＋＋　実行後\n");
		System.out.print("ａ＝"+a+"\n");
		
		b=++a;
		System.out.print("\nｂ＝＋＋ａ　実行後\n");
		System.out.print("ａ＝"+a+"\n");
		System.out.print("ｂ＝"+b+"\n");
		
		b=a++;
		System.out.print("\nｂ＝ａ＋＋　実行後\n");
		System.out.print("ａ＝"+a+"\n");
		System.out.print("ｂ＝"+b+"\n");
		
		a+=b;
		System.out.print("\nａ＋＝ｂ　実行後\n");
		System.out.print("ａ＝"+a+"\n");
		System.out.print("ｂ＝"+b+"\n");

		a-=b;
		System.out.print("\nａ−＝ｂ　実行後\n");
		System.out.print("ａ＝"+a+"\n");
		System.out.print("ｂ＝"+b+"\n");

		a*=b;
		System.out.print("\nａ＊＝ｂ　実行後\n");
		System.out.print("ａ＝"+a+"\n");
		System.out.print("ｂ＝"+b+"\n");
		
		a/=b;
		System.out.print("\nａ／＝ｂ　実行後\n");
		System.out.print("ａ＝"+a+"\n");
		System.out.print("ｂ＝"+b+"\n");
	}
}