G21313231323133313221323132312121111331323132313223313232111211   >>    G2131323132313331322132313231212111133132313231322331323211121   <<    G21313231323133313221323132312121111331323132313223313232111213   >>      G21313231323133313221323132312121111331323132313223313232111212   >>