Name the former codes for  merged into panama ( pa , pan , 591 )
CREATE TABLE table_222666_1 (former_codes VARCHAR, new_country_names_and_codes VARCHAR)
SELECT former_codes FROM table_222666_1 WHERE new_country_names_and_codes = "Merged into Panama ( PA , PAN , 591 )"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_222666_1 (former_codes VARCHAR, new_country_names_and_codes VARCHAR) Question: Name the former codes for  merged into panama ( pa , pan , 591 ) [/INST] SELECT former_codes FROM table_222666_1 WHERE new_country_names_and_codes = "Merged into Panama ( PA , PAN , 591 )" </s>