创建两个vlan 让他们相同怎么做？

Pc1 和pc2 同一网段，只用配一个vlan 就可以，经过两台路由器连接pc3 怎么做？

SW1:
vlan 100
name test1
int vlan 100
ip add 1.1.1.3 255.255.255.0
no shut
int range g0/0/1 -3
sw mode acc
sw acc vlan 100
no shut
sw2:
vlan 200
name test2
int vlan 200
ip add 2.2.2.3 255.255.255.0
no shut
int range g0/0/1 -2
sw mode acc
sw acc vlan 200
no shut
R1:
int e0/0/0
ip add 1.1.1.254 255.255.255.0
no shut
int e0/0/1
ip add 12.1.1.1 255.255.255.0
no shut
ip route 0.0.0.0 0.0.0.0 12.1.1.2
R2:
int e0/0/1
ip add 2.2.2.254 255.255.255.0
no shut
int e0/0/0
ip add 12.1.1.2 255.255.255.0
no shut
ip route 0.0.0.0 0.0.0.0 12.1.1.1