Hello @uanixnix,
welcome here and thanks for reaching out to us.
You're from Ukraine, am I right? You can travel for free - just show your Ukrainian passport at the ticket counter and you will receive a so called "HelpUkraine"-ticket which entitles you to travel to another city without any costs.
I hope my answers were helpful and I’ll be very pleased if you contact me again with further questions. I'm a member of the mbeon-staff and I‘ll be glad to guide over a longer period of time. mbeon is an online advisory service for migrants via the mbeon-app, which you can download on your smartphone for free. You'll find me in the mbeon-app under my location „München” and then my name “Frau Müller“ and get confidential one-to-one advice in a safe virtual room where nobody can read messages. For further information please visit ***.mbeon.de. Best regards mbeon-Christine