#include <stdio.h>


char sz[19];

int nCell[3];

/////////////////////////////////////////////
int main()                                 //
{


    scanf("%s", sz);

    printf("1st cell is : ");


    int i = 0;

    while(sz[i] != 0)
    {



       if(sz[i]   % 2)
       if(sz[i+1] % 2)      { printf("black\n"); i+=2; break; }
       if(sz[i]   % 2 == 0)
       if(sz[i+1] % 2 == 0) { printf("black\n"); i+=2; break; }


       printf("whaite\n");

       nCell[1] = 1;

       i+=2;

       break;

    }

    printf("2nd cell is : ");

    while(sz[i] != 0)
    {

       if(sz[i]   % 2)
       if(sz[i+1] % 2)      { printf("black\n"); i+=2; break; }
       if(sz[i]   % 2 == 0)
       if(sz[i+1] % 2 == 0) { printf("black\n"); i+=2; break; }


       printf("whaite\n");

       nCell[2] = 1;

       break;

    }


    if(nCell[1] == nCell[2]) printf("Yes, same colors."         );
    else                     printf("Different colors of cells.");

return 0;
}