37 lines
720 B
C++
37 lines
720 B
C++
#include<cstdio>
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#include<cmath>
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#include<cstring>
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#include<algorithm>
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#include<iostream>
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#include<vector>
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using namespace std;
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double eps = 1e-8;
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bool cal(double n){
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if(1-n < eps)
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return true;
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int inter;
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double now, org = n;
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while(1){
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inter = n * 3;
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if(inter == 1)
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return false;
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n = n * 3 - inter;
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if(fabs(org - n) < eps)
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break;
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}
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return true;
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}
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int main()
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{
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double n;
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char temp[10];
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while(scanf("%s", temp) != EOF && temp[0] != 'E'){
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sscanf(temp, "%lf", &n);
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if(cal(n))
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puts("MEMBER");
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else
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puts("NON-MEMBER");
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}
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return 0;
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}
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