Solve using subnet 192.168.1.0/25

There are total 4 Routers. and total 5 network. router R1 and R2 are in packet tracer 1 and Router R3 and r4 are in Packet Tracer 2.
There are total 2 Switches S1 and s2. S1 connected with R1 and S2 connected with R4.
R2 and R3 connecting through multiuser. Telnet is configured on all even routers. DNS Server and NTP Server in Packet Tracer 1 while gmail.com and syslog server is in 2nd packet tracer.

R1 R2 R3 and R4 all get timing through NTP server.
Log server for each router is the syslog server.
Client PC for gmail.com can be taken inside any packet tracer.

Note: You can’t use first two subnets of 192.168.1.0/25