#include <stdio.h>
#include <string.h>

int main () {
    int i,sP,sI,aux,vetor[1000];
    char num[1001];

    for ( ; ; ) {
        memset (num,0,sizeof(char)*1001);
        memset (vetor,0,sizeof(int)*1000);
        scanf("%s",num);
        if ( num[0] == '0' )
            break;
        aux = strlen(num);
        for ( i = 0 ; i < aux; i++ ){
            vetor[i]=num[i]-48;
        }

        sP=0,sI=0;
        for ( i = 0 ; i < aux ;i++ ) {
            if ( i%2 == 0 )
                sP += vetor[i];
            else
                sI += vetor[i];
        }
        if ( sP == sI || (sI-sP)%11 == 0 )
            printf("%s is a multiple of 11.\n",num);
        else
            printf("%s is not a multiple of 11.\n",num);
        }
    return 0;
}