$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 ($21 < $10)
  $200 = $200 + A[($21 / W) + 1, ($21 % W) + 1]
  $201 = $201 + B[($21 / W) + 1, ($21 % W) + 1]
  $21 = $21 + 1
end
if ($200 != $201)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($200 == $201)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($31 < $10)
  $300 = $300 + A[($31 / W) + 1, ($31 % W) + 1]
  $301 = $301 + B[($31 / W) + 1, ($31 % W) + 1]
  $31 = $31 + 1
end
if ($300 != $301)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($300 == $301)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($41 < $10)
  $400 = $400 + A[($41 / W) + 1, ($41 % W) + 1]
  $401 = $401 + B[($41 / W) + 1, ($41 % W) + 1]
  $41 = $41 + 1
end
if ($400 != $401)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($400 == $401)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($51 < $10)
  $500 = $500 + A[($51 / W) + 1, ($51 % W) + 1]
  $501 = $501 + B[($51 / W) + 1, ($51 % W) + 1]
  $51 = $51 + 1
end
if ($500 != $501)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($500 == $501)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($61 < $10)
  $600 = $600 + A[($61 / W) + 1, ($61 % W) + 1]
  $601 = $601 + B[($61 / W) + 1, ($61 % W) + 1]
  $61 = $61 + 1
end
if ($600 != $601)
  $15 = $10
  $10 = ($16 + $10) / 2
end
if ($600 == $601)
  $16 = $10
  $10 = ($15 + $10) / 2
end
while ($71 < $10)
  $700 = $700 + A[($71 / W) + 1, ($71 % W) + 1]
  $701 = $701 + B[($71 / W) + 1, ($71 % W) + 1]
  $71 = $71 + 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)