(1, LITERAL, "a")
(1, SET)
(1, NUMBER, 4.0)
(1, SEMICOLON)
(2, IF)
(2, OPEN_BRACKET)
(2, LITERAL, "a")
(2, SUB)
(2, NUMBER, 2.0)
(2, LESS)
(2, NUMBER, 3.0)
(2, CLOSE_BRACKET)
(3, OPEN_CURVED_BRACKET)
(4, LITERAL, "print")
(4, OPEN_BRACKET)
(4, STRING, "a")
(4, CLOSE_BRACKET)
(4, SEMICOLON)
(5, CLOSE_CURVED_BRACKET)
(6, EOF)