G1212121123313131133132213231322331323223313133313233313123232111   >>    G121212112331313113313221323132233132322331313331323331312323211   <<    G1212121123313131133132213231322331323223313133313233313123232113   >>      G1212121123313131133132213231322331323223313133313233313123232112   >>