G131133132313231333133313331333131133133313232233131133133112121   >>    G13113313231323133313331333133313113313331323223313113313311212   <<    G131133132313231333133313331333131133133313232233131133133112123   >>      G131133132313231333133313331333131133133313232233131133133112122   >>