End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
https://123deta.com/document/yro31l8y-先行順序合流可能運搬経路問題に対する探索最適化手深化広がり.html