how to set valid ip to mikrotik??

hi
sorry english me is bad
I have wan adsl and my wan address is valid ip
I going to set valid ip in mikrotik in the firwall>nat how can I??

and i going to local address conect to internet?

my local : 10.10.10.1
public valip ip: 178.173.169.44

thanks

Simpy add masquerade NAT rule with public interface specified as an out-interface.

netmap or masquerade?

somebody say to me, netmap