irb broken

code

def lcd(a,b)
 total = 0
 if b.include?(a)
   b_c = b.chars.uniq
   for a_i in 0...(a.length) do
     b_c.each do |e|
       t_a = a
       total += 1 if b.include?(t_a.insert(a_i, e)) 
     end
   end
 end
 puts total
end

lcd("aa", "baaa")

gistfile1.txt

wwalker@polonium:~$ ruby
def lcd(a,b)
 total = 0
 if b.include?(a)
   b_c = b.chars.uniq
   for a_i in 0...(a.length) do
     b_c.each do |e|
       t_a = a
       total += 1 if b.include?(t_a.insert(a_i, e)) 
     end
   end
 end
 puts total
end

lcd("aa", "baaa")
1

output

wwalker@polonium:~$ irb
irb(main):001:0> def lcd(a,b)
irb(main):002:1>  total = 0
irb(main):003:1>  if b.include?(a)
irb(main):004:2>    b_c = b.chars.uniq
irb(main):005:2>    for a_i in 0...(a.length) do
irb(main):006:3*      b_c.each do |e|
irb(main):007:3*        t_a = a
irb(main):008:3>        total += 1 if b.include?(t_a.insert(a_i, e)) 
irb(main):009:3>      end
irb(main):010:2>    end
irb(main):011:1>  end
SyntaxError: (irb):11: syntax error, unexpected end-of-input, expecting keyword_end
        from /home/wwalker/.asdf/installs/ruby/2.3.3/bin/irb:11:in `<main>'
irb(main):012:0>