求和：2+22+222+2222+22222

package program;
/**
 * 求2+22+222+2222+22222。
 * @author Administrator
 *
 */
public class T3_14 {

    public static void main(String[] args) {
        int b=0;
        int sub=0;
        for (int i = 0; i < 5; i++) {
            b=b*10+2;
            sub+=b;
        }
        System.out.println(sub);
    }

}