Level Codes:

Level  1: AAAA   Level  5: ELZA   Level  9: IWOB   Level 13: M7DC
Level  2: 2LGA   Level  6: 6W5A   Level 10: A8UB   Level 14: EJKC
Level  3: UXMA   Level  7: Y8BB   Level 11: 2J1B   Level 15: GUQC
Level  4: M95A   Level  8: QKIB   Level 12: UV7B   Level 16: Y6WC