问题3072--Cantor

3072: Cantor

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时间限制 : 10.000 sec  内存限制 : 64 MB

题目描述

The ternary expansion of a number is that number written in base 3. A number can have more than one ternary expansion. A ternary expansion is indicated with a subscript 3. For example, 1 = 13 = 0.222...3, and 0.875 = 0.212121...3. The Cantor set is defined as the real numbers between 0 and 1 inclusive that have a ternary expansion that does not contain a 1. If a number has more than one ternary expansion, it is enough for a single one to not contain a 1. For example, 0 = 0.000...3 and 1 = 0.222...3, so they are in the Cantor set. But 0.875 = 0.212121...3 and this is its only ternary expansion, so it is not in the Cantor set. Your task is to determine whether a given number is in the Cantor set.

输入

The input consists of several test cases. Each test case consists of a single line containing a number x written in decimal notation, with 0 <= x <= 1, and having at most 6 digits after the decimal point. The last line of input is END. This is not a test case.

输出

For each test case, output MEMBER if x is in the Cantor set, and NON-MEMBER if x is not in the Cantor set.

样例输入 Copy

0
1
0.875
END

样例输出 Copy

MEMBER
MEMBER
NON-MEMBER

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