Which Transfer fee has a Moving from of youth system, and a Nat of mar?
CREATE TABLE table_62855 (
    "Nat." text,
    "Name" text,
    "Moving from" text,
    "Type" text,
    "Transfer window" text,
    "Ends" real,
    "Transfer fee" text
)
SELECT "Transfer fee" FROM table_62855 WHERE "Moving from" = 'youth system' AND "Nat." = 'mar'
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: Which Transfer fee has a Moving from of youth system, and a Nat of mar? ### Input: CREATE TABLE table_62855 (
    "Nat." text,
    "Name" text,
    "Moving from" text,
    "Type" text,
    "Transfer window" text,
    "Ends" real,
    "Transfer fee" text
) ### Response: SELECT "Transfer fee" FROM table_62855 WHERE "Moving from" = 'youth system' AND "Nat." = 'mar'