a = (read-line *standard-input* nil nil)
b = (read-line *standard-input* nil nil)
c=(+ a b)
(format t "~A~%" c)
YSA9IChyZWFkLWxpbmUgKnN0YW5kYXJkLWlucHV0KiBuaWwgbmlsKSAKYiA9IChyZWFkLWxpbmUgKnN0YW5kYXJkLWlucHV0KiBuaWwgbmlsKSAKYz0oKyBhIGIpCihmb3JtYXQgdCAifkF+JSIgYyk=