+ n : INTEGER; n := 3; (n = 2).if { IO.put_string "n is 2\n"; }.elseif {n = 3} then { IO.put_string "n is 3\n"; }.elseif {n = 4} then { IO.put_string "n is 4\n"; } else { IO.put_string "n is none of the above\n"; };