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_63 ( total INTEGER, difficulty_score VARCHAR, rank VARCHAR, routine_score VARCHAR )

### Question ###
What is the total with lower than rank 8, and higher than 27.6 score and 13.8 difficulty?

### Accurate SQL ###

SELECT MIN(total) FROM table_name_63 WHERE rank > 8 AND routine_score > 27.6 AND difficulty_score = "13.8"