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_42 (rank INTEGER, location VARCHAR, current_seating_capacity VARCHAR)

### Question ###
What is Lowest Rank, when Location is Rio De Janeiro, Brazil, and when Current Seating Capacity is less than 78,838?

### Accurate SQL ###

SELECT MIN(rank) FROM table_name_42 WHERE location = "rio de janeiro, brazil" AND current_seating_capacity < 78 OFFSET 838