G131133132313231333133313331333131133133313232233132333132313222121   >>    G13113313231323133313331333133313113313331323223313233313231322212   <<    G131133132313231333133313331333131133133313232233132333132313222123   >>      G131133132313231333133313331333131133133313232233132333132313222122   >>