how to configure ospf multi area on packet tracer code example

Example 1: cisco packet tracer ospf multi area

R2(config)#router ospf 1
R2(config-router)#network 192.168.12.0 0.0.0.255 area 0

Example 2: cisco packet tracer ospf multi area

R3(config)#router ospf 1
R3(config-router)#network 192.168.13.0 0.0.0.255 area 1
R3(config-router)#network 3.3.3.3 0.0.0.0 area 1

Example 3: cisco packet tracer ospf multi area

R1(config)#router ospf 1
R1(config-router)#network 192.168.13.0 0.0.0.255 area 1