Table schema:
CREATE TABLE table_name_63 (left_office VARCHAR, political_party VARCHAR, took_office VARCHAR)

Question: What is Left Office, when Political Party is Ba'ath Party ( Syria Region ), and when Took Office is 7 March 1958?
SQL: SELECT left_office FROM table_name_63 WHERE political_party = "ba'ath party ( syria region )" AND took_office = "7 march 1958"