070008001000090800003000005000300900190000057008007000600000704005070000034800060 *-----------* |.7.|..8|..1| |...|.9.|8..| |..3|...|..5| |---+---+---| |...|3..|9..| |19.|...|.57| |..8|..7|...| |---+---+---| |6..|...|7.4| |..5|.7.|...| |.34|8..|.6.| *-----------*