(1, LITERAL, "print")
(1, OPEN_BRACKET)
(1, STRING, "a")
(1, CLOSE_BRACKET)
(1, SEMICOLON)
(2, LITERAL, "invstring")
(2, SET)
(2, STRING, "")
(2, SEMICOLON)
(3, LITERAL, "goto")
(3, OPEN_BRACKET)
(3, LABEL, "@label4")
(3, CLOSE_BRACKET)
(3, SEMICOLON)
(4, LABEL, "@label3")
(5, LITERAL, "print")
(5, OPEN_BRACKET)
(5, STRING, "e")
(5, CLOSE_BRACKET)
(5, SEMICOLON)
(6, LITERAL, "goto")
(6, OPEN_BRACKET)
(6, LABEL, "@label5")
(6, CLOSE_BRACKET)
(6, SEMICOLON)
(7, LABEL, "@label4")
(9, LITERAL, "goto")
(9, OPEN_BRACKET)
(9, LABEL, "@label1")
(9, CLOSE_BRACKET)
(9, SEMICOLON)
(10, LITERAL, "print")
(10, OPEN_BRACKET)
(10, STRING, "b")
(10, CLOSE_BRACKET)
(10, SEMICOLON)
(11, LABEL, "@label1")
(13, LITERAL, "goto")
(13, OPEN_BRACKET)
(13, STRING, "label2")
(13, CLOSE_BRACKET)
(13, SEMICOLON)
(14, LITERAL, "print")
(14, OPEN_BRACKET)
(14, STRING, "c")
(14, CLOSE_BRACKET)
(14, SEMICOLON)
(15, LABEL, "@label2")
(15, SEMICOLON)
(17, LITERAL, "goto")
(17, OPEN_BRACKET)
(17, LABEL, "@label3")
(17, CLOSE_BRACKET)
(17, SEMICOLON)
(18, LABEL, "@label5")
(19, LITERAL, "print")
(19, OPEN_BRACKET)
(19, STRING, "d")
(19, CLOSE_BRACKET)
(19, SEMICOLON)
(21, LITERAL, "print")
(21, OPEN_BRACKET)
(21, STRING, "b")
(21, CLOSE_BRACKET)
(21, SEMICOLON)
(22, EOF)