Find the BIC numbers for Dutch IBAN numbers, help

Setting Remark
Enter the IBAN numbers each on a separate line. Max. IBAN numbers. Each IBAN number must be on a separate line. The Dutch IBAN numbers can only contain numbers and letters whether or not separated by spaces.

For example

NL71 INGB 0908 2335 07
NL04 RABO 0520 3303 90