Special route to the internet for specific Ports/IPs/MACs

RouterOS Beginner Basics
4 
add distance=1 dst-address=0.0.0.0/0  gateway=172.16.0.1
add distance=1 dst-address=10.7.0.0/24  gateway=10.33.126.1
add distance=1 dst-address=10.2.0.0/24  gateway=10.33.126.1

this is on Router B, IP, Route