what are all the playoffs for regular season is 1st, atlantic division
CREATE TABLE table_1046170_5 (
    playoffs VARCHAR,
    regular_season VARCHAR
)
SELECT playoffs FROM table_1046170_5 WHERE regular_season = "1st, Atlantic division"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: what are all the playoffs for regular season is 1st, atlantic division ### Input: CREATE TABLE table_1046170_5 (
    playoffs VARCHAR,
    regular_season VARCHAR
) ### Response: SELECT playoffs FROM table_1046170_5 WHERE regular_season = "1st, Atlantic division"