G13113313231323133313331333133313113313331323223313231322212121   >>    G1311331323132313331333133313331311331333132322331323132221212   <<    G13113313231323133313331333133313113313331323223313231322212123   >>      G13113313231323133313331333133313113313331323223313231322212122   >>