#include<bits/stdc++.h>
using namespace std;
// This is UVA problem. No: 10929
int main() {
    long long n;
    while(cin>>n) {
        if(n==0) return 0;
        if(n%11 == 0){
            printf("%lld is a multiple of 11\n", n);
        } else {
            printf("%lld is not a multiple of 11\n", n);
        }
    }
    return 0;
}