C111113331333132322331333133313331333132313121111332233131121133131121   >>    C11111333133313232233133313331333133313231312111133223313112113313112   <<    C111113331333132322331333133313331333132313121111332233131121133131123   >>      C111113331333132322331333133313331333132313121111332233131121133131122   >>