Answer
Różycki and Zygalski were Rejewski's fellow cryptologists. Together, they formed the Polish Cipher Bureau, which played a crucial role in breaking the Enigma code during World War II. Różycki developed the "bomba" machine, which helped decipher Enigma messages, while Zygalski invented the "Zygalski sheets," which further simplified the decryption process. Their combined efforts significantly contributed to the Allied victory in the war.