Blockchain_HW2

0. Run npm install to install the libraries.
1. In index.js, change const prefix = "<your prefix>", the prefix should be in lower case;
2. In index.js, change const passphrase = "<your passphrase>" for your wallet
3. In index.js, change const Num_iteration = <number_of_iteration> if the program cannot find the vanity address within the specified number of iteration.
4. Run node index.js