learning.rb

var = ""
b = []

while var != 333
  puts "Put a fixnum"
	var = gets.chomp.to_i
	b.push var
end

puts "Put a method: *, -, +, /"
method = gets.chomp
b.delete_if {|i| i == 0}
b.delete_if {|i| i == 333}

result = b.inject(method)
puts result