1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0
1 1 1 1 1 1 1 1 1 1 1 1 1 - - 0 0 0 0
1 1 1 1 1 1 1 1 1 1 1 1 - - - - 0 0 0
1 1 1 1 1 1 1 1 1 1 1 - - - - - - 0 0
1 1 1 1 1 1 1 1 1 1 - - - - - - - - 0
1 1 1 1 1 1 1 1 1 - - - - - - - - - -
^
minimum