#include <stdio.h>


#include <string.h>
int main()
{
	char str1[20] = {0};
	char str2[20] = {0};
	scanf("%s %s", str1, str2); 
	if (strcmp(str1, str2) == 0)
		printf("same\n");
	else
		printf("different\n");
	return 0;
}