3 WAN and torrents?

Question

Mikrotik

Given: 3 ip gateways behind one interface, the speed to the gateways is 100mb/sec, the speed to the Internet from the gateway is different 30/10/5 mb/sec
on the microt the gateways are registered on 0.0.0.0/0 with different "routing mark"
how to scatter traffic correctly through mangle on these gateways?
first mark the packets based on the protocol / port (let's say all udp except port 53 and all tcp except ports 80, 443)
and then mark the marked packets through PCC src-address-and-port mark "routing mark"
tried to do it crookedly, tell me where wrong

Answer 1

Label the connections first, then the packets with a specific connection label.

Answer 2

wiki?