def f1()
return 'f1'
end
puts(f1())
def f2
return 'f2'
end
puts(f2())
def f3
return 'f3'
end
puts(f3)
def f4(a1)
return a1
end
puts(f4('f4'))
def f5 a1
return a1
end
puts(f5 'f5')
puts f5 'f5'
def f6
return 'f6'
end
puts f6
def f7
'f7'
end
puts f7
def f8
a = 1
b = 2
a + b
end
puts f8
ZGVmIGYxKCkKICByZXR1cm4gJ2YxJwplbmQKcHV0cyhmMSgpKQpkZWYgZjIKICByZXR1cm4gJ2YyJwplbmQKcHV0cyhmMigpKQpkZWYgZjMKICByZXR1cm4gJ2YzJwplbmQKcHV0cyhmMykKZGVmIGY0KGExKQogIHJldHVybiBhMQplbmQKcHV0cyhmNCgnZjQnKSkKZGVmIGY1IGExCiAgcmV0dXJuIGExCmVuZApwdXRzKGY1ICdmNScpCnB1dHMgZjUgJ2Y1JwpkZWYgZjYKICByZXR1cm4gJ2Y2JwplbmQKcHV0cyBmNgpkZWYgZjcKICAnZjcnCmVuZApwdXRzIGY3CmRlZiBmOAogIGEgPSAxCiAgYiA9IDIKICBhICsgYgplbmQKcHV0cyBmOAo=