C :

#include<stdio.h>
#include<string.h>
#include<stdlib.h>
int main()
{
	int i,t;
	double x;
	char a[9];
	while(gets(a),strcmp(a,"END"))
	{
		x=atof(a);
		t=0;
		if(x==0||x==1)
			printf("MEMBER\n");
		else
		{
			i=13;
			while(i--)
			{
				x=(x-(int)x)*3;
				if((int)x==1)
				{
					printf("NON-MEMBER\n");
					t++;
					break;
				}
			}
			if(t==0)
				printf("MEMBER\n");
		}
	}
	return 0;
}