def min(*values)
 values.min
end

def max(*values)
 values.max
end

liste = File.open("schrauben.txt", "r"){ |file| file.read.split(" ").each_slice(2).to_a.each{|e| e[1] = e[1].to_i}}

muttern = Array.new(150, 0)
schrauben = Array.new(150, 0)

liste.each{|e| if e[0]=="m" then muttern[e[1]]+=1 elsif e[0]=="s" then schrauben[e[1]]+=1 end}

for e in 0..149 do
	minimum = min(muttern[e],schrauben[e])
	puts "#{e}mm: #{minimum} passende Paare" if minimum != 0
end