$0 = 0
while($0 != -1)
	$1 = $0 % W + 1;
  $1 = $1 + A[1,$0]
  $2 = $2 + B[1,$0]
  $0 = $0 + 1
end
if($1 > $2)
  $3 = $1
  $1 = $2
  $2 = $3
end
return($1, $2)