text: #include <stdio.h>
  
  int main(void){
      char checkerBoard[8][8];
  
      for (int i = 0; i < 8; i++){
          for (int j = 0; j < 8; j++){
              checkerBoard[i][j] = (i + j) % 2 == 0 ? 'B' : 'R';
              // printf("%d %d", i, j);
              printf("%c\t", checkerBoard[i][j]);
              if (j % 7 == 0 && j != 0){
                  printf("\n");
              }
              
          }
      }
      printf("\n");
      
  
      return 0;
  }