# 再々修正。三度目の正直！
n = gets.to_i
num = gets.split.map(&:to_i)
numary = []

num.each_with_index {|num, idx| numary << [num, idx] }
numary.sort!.reverse!

i = 0
while i < n-1
	break if numary[i][1] < numary[i+1][1]
	i += 1
end

puts n - (i+1)