#include<iostream>

 #include<cstring>

 #include<cstdio>

 #define inf 70000

 using namespace std;

 int dp[inf];

 int sum;

 void pack(int price)

 {

     for(int i = sum; i >= price; i--) dp[i] = max(dp[i], dp[i - price] + price);

 }

 int main()

 {

     int a[],i,q=,j;

     while (~scanf("%d %d %d %d %d %d",&a[],&a[],&a[],&a[],&a[],&a[]))

     {

         if (a[]==&&a[]==&&a[]==&&a[]==&&a[]==&&a[]==)

             break;

         memset(dp,-inf,sizeof(dp));

         dp[]=;

         printf("Collection #%d:\n",q++);

         sum=;

         for (i=;i<=;i++)

             sum+=a[i]*i;

         if (sum%!=)

         {

             printf("Can't be divided.\n\n");

             continue;

         }

         sum/=;

         for (i=;i<=;i++)

         {

             if (i*a[i]>=sum)

             {

                 for (j=i;j<=sum;j++)

                     dp[j]=max(dp[j],dp[j-i]+i);

             }

             else

             {

                 int k = ;

                 while(k < a[i])

                 {

                    pack(k * i);

                    a[i] -= k;

                    k += k;

                 }

                 pack(a[i] * i);

             }

         }

         if (dp[sum]==sum)

             printf("Can be divided.\n\n");

         else

             printf("Can't be divided.\n\n");

     }

     return ;

 }