4 dbl

4 dbl4 dbl4 dbl4 dbl
4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl
4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl
4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl
4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl4 dbl