.&.&.&...& ..&..&&&.. ......&... &..&.&.&&. .......&.. .&.....&&& &.......&. ..&....&.& &&.......& ...&.....& .&&....... ....&....& .&&&...... &....&.... .&.&&..... .&....&... ...&&&.... ..&....&.. ...&.&&... ...&....&. .....&&&.. ....&....&