input = File.read("input_lol").split("\n").map(&:to_i)

i1 = 0
res1 = 0

part1 = input.dup
while part1[i1] != nil do
  curr1, part1[i1] =i1 + part1[i1], part1[i1] + 1
  i1, res1 = curr1, res1+1
end

puts res1

i2 = 0
res2 = 0

part2 = input.dup
while part2[i2] != nil do
  curr2, part2[i2] =i2 + part2[i2], part2[i2] + (if part2[i2] >= 3 then -1 else 1 end)
  i2, res2 = curr2, res2+1
end

puts res2