$10 = H * W / 2
$11 = 0
$15 = H * W
$16 = 0
while ($11 < $10)
  $100 = $100 + A[($11 / W) + 1, ($11 % W) + 1]
  $101 = $101 + B[($11 / W) + 1, ($11 % W) + 1]
  $11 = $11 + 1
end
if ($100 != $101)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($100 == $101)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($11 < $10)
  $200 = $200 + A[($11 / W) + 1, ($11 % W) + 1]
  $201 = $201 + B[($11 / W) + 1, ($11 % W) + 1]
  $11 = $11 + 1
end
if ($200 != $201)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($200 == $201)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($11 < $10)
  $300 = $300 + A[($11 / W) + 1, ($11 % W) + 1]
  $301 = $301 + B[($11 / W) + 1, ($11 % W) + 1]
  $11 = $11 + 1
end
if ($300 != $301)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($300 == $301)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($11 < $10)
  $400 = $400 + A[($11 / W) + 1, ($11 % W) + 1]
  $401 = $401 + B[($11 / W) + 1, ($11 % W) + 1]
  $11 = $11 + 1
end
if ($400 != $401)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($400 == $401)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($11 < $10)
  $500 = $500 + A[($11 / W) + 1, ($11 % W) + 1]
  $501 = $501 + B[($11 / W) + 1, ($11 % W) + 1]
  $11 = $11 + 1
end
if ($500 != $501)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($500 == $501)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($11 < $10)
  $600 = $600 + A[($11 / W) + 1, ($11 % W) + 1]
  $601 = $601 + B[($11 / W) + 1, ($11 % W) + 1]
  $11 = $11 + 1
end
if ($600 != $601)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($600 == $601)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($11 < $10)
  $700 = $700 + A[($11 / W) + 1, ($11 % W) + 1]
  $701 = $701 + B[($11 / W) + 1, ($11 % W) + 1]
  $11 = $11 + 1
end
if ($700 != $701)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($700 == $701)
  $16 = $10
  $10 = ($15 + $10) / 2
end
return(1 + $16 / W, 1 + $16 % W)