$0 = 0
$1 = 0
$2 = 1
while($0 < H * W)
  $3 = ($0 / W) + 1
  $4 = ($0 % W) + 1
  $5 = A[$3, $4]
  $6 = B[$3, $4]
  $7 = ($5 - $6) * ($5 - $6)
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $7 = ($7 + 1) / 2
  $1 = $1 + $7 * $2
  $2 = $2 * 2
  $0 = $0 + 1
end

$7 = 0
while(($1 % 2) == 0)
  $1 = $1 / 2
  $7 = $7 + 1
end

return($7 / W + 1, $7 % W + 1)