Lab 2.2. step 8 - where do we get the tokens from?

"Your nodes will use a different IP address and hashes than the example below." - OK, but where can one find the correct tokens/hashes?

student@worker: ̃$ sudo kubeadm join --token 118c3e.83b49999dc5dc034 \
10.128.0.3:6443 --discovery-token-ca-cert-hash \
sha256:40aa946e3f53e38271bae24723866f56c86d77efb49aedeb8a70cc189bfe2e1d