G131133132313231333133313331333132322331323133313231322132322121   >>    G13113313231323133313331333133313232233132313331323132213232212   <<    G131133132313231333133313331333132322331323133313231322132322123   >>      G131133132313231333133313331333132322331323133313231322132322122   >>