Hi,
Router A
interface FastEthernet0/0
ip address 172.23.14.137 255.255.255.128
speed 100
full-duplex
standby ip 172.23.14.129
standby priority 150
standby preempt
Router B
interface FastEthernet0/0
ip address 172.23.14.138 255.255.255.128
speed 100
full-duplex
standby ip 172.23.14.129
standby priority 100
standby preempt
---------------------------
HSRP IP is 172.23.14.129