#include <stdio.h>

int dividable(int* a)
{
    int sum = a[0]+a[1]+a[2]+a[3]+a[4]+a[5];
    if(sum % 2) return 0;         /* odd sum */

    int hsum = sum / 2;         /* half sum */
    int i,j,k;
    /* check whether we could find some numbers so that they add up to hsum */
    /* 1 number only */
    i=0;
    while(i<6){
        if(a[i]==hsum) return 1;
        i++;
    }

    /* 2 numbers */
    i=0;
    while(i<6){
        j=i+1;
        while(j<6){
            if(a[i]+a[j]==hsum) return 1;
            j++;
        }
        i++;
    }

    /* 3 numbers */
    i=0;
    while(i<6){
        j=i+1;
        while(j<6){
            k=j+1;
            while(k<6){
                if(a[i]+a[j]+a[k]==hsum) return 1;
                k++;
            }
            j++;
        }
        i++;
    }

    /* 4 numbers are identical to 2 numbers */
    /* 5 numbers are identical to 1 number only */

    return 0;
}

int main(int argc, char * argv[])
{
    int a[6];
    int i=1;
    while(1){
        scanf("%d %d %d %d %d %d",
              &a[0], &a[1], &a[2], &a[3], &a[4], &a[5]);
        if(a[0]==0 && a[1]==0 && a[2]==0 &&
           a[3]==0 && a[4]==0 && a[5]==0) break;
        printf("Collection #%d:\n",i);
        if(dividable(a))
            printf("Can be divided.\n\n");
        else
            printf("Can't be divided.\n\n");
        i++;
    }
    return 0;
}