Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_78 (heat INTEGER, nationality VARCHAR, rank VARCHAR)

### Question ###
How many heats did Runners from Guinea-Bissau run, with rank higher than 33?

### Accurate SQL ###

SELECT SUM(heat) FROM table_name_78 WHERE nationality = "guinea-bissau" AND rank < 33