At the End of the World, I Will Bring Hundreds of Billions of Supplies and Put Them to Pieces

[The end of the world + stocking up + hundreds of billions of supplies + rebirth] On the first day of the apocalypse, Zhang Xinian was unexpectedly reborn in the future world, and the 3,800 yuan in his pocket turned into 300 billion yuan, making him the richest man. What? If I don't have supplies, I fly directly to various countries to buy supplies and put them into the space bracelet. I'm the richest man! What? When a natural disaster comes, Zhang Xinian, who has a variety of technologies at his disposal, says he is not afraid at all. I am the richest man! What? I accidentally saved two worlds, and I actually became a hot potato? !