G1212121123313131133132213231322331323223313133313233313231212121   >>    G121212112331313113313221323132233132322331313331323331323121212   <<    G1212121123313131133132213231322331323223313133313233313231212123   >>      G1212121123313131133132213231322331323223313133313233313231212122   >>