Bip39n code https://andersonsaeu988.iamarrows.com/bip39-generator-online-the-best-devices-for-secure-wallet-creation 3a43fced052690635cc9fdce418514528b000dff3eaa5b986ea7be809062e775f2fe99c76733ff200b56fb70cac7c6ac7818b1e8139192a70fe274f5bf57fa46 For words that only have three letters, there is no 4th letter. One example is Using the word “add”, there won't be any extra letters afterwa... https://bookmarkspecial.com/story20701980/bip39-seed-to-mnemonic-bip39-compatible-wallet-options-https-linktr-ee-bip39