import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
String stra = sc.next();
String strb = sc.next();
if(stra.equals(strb)) { //判断两个字符串变量的值是否相同
System.out.println("same");
} else {
System.out.println("different");
}
}
}