<s, t><v, w> = <tv, tw+s>



<a, -b><1, -1><1, -1><1, -1><1, -1>…<1, -1>





24b0d121e0826efe20b5c6b236ef203e7c3afa4da683b6


24b0d121e0826eff20b5c6b236ef203e22a1064f294415


24b0d121e0826ff620b5c6b236ef203ec713509f2077ee


24b0d121e0826ff720b5c6b236ef203e7e75061efbb7f0