(1, LITERAL, "a")
(1, SET)
(1, NUMBER, 3.0)
(1, SEMICOLON)
(2, DEC)
(2, LITERAL, "a")
(2, SEMICOLON)
(3, LITERAL, "print")
(3, OPEN_BRACKET)
(3, LITERAL, "a")
(3, CLOSE_BRACKET)
(3, SEMICOLON)