Here is all four three block tracks my friend made
1.0 v3SAzAiYs92YrBCdyF2YrB4p9YlBGZgBGenfve8yADsxQDMwES8ZFIfeDGf8xADsAkPAEeRTwP
2.0 v3cAUhmclVGICx2bjtGIUJXYjtGIy4CM4p9YlBGZgBGe3fveCyADfffveM4DMeFiBGenfveMFBSyffAKPAe17PcM
3.0 v3cAUhmclVGICx2bjtGIUJXYjtGIz4CM4p9YlBGZgBGYlhG4iBGYmhGYgNw8ZBMffffveMIISyzEQ5BotRLwJ
4.0 v3XAzAiYs92YrBCdyF2YrBCNuAD4p9YlBGZAEoBokKAmffffXPESG9CMff3fXPLMwATM0AjAq90EiD
Just for fun here is my 4 block track
v3KA0ACdyF2YrB4p9YlBGZgBGevfveyxADszQDMxEDMBnPHA5DhFXAZ5HSqkHg8BAkbJGeO
Enjoy