G211313312113313223313231322331311211331322331323211331312312321   >>    G21131331211331322331323132233131121133132233132321133131231232   <<    G211313312113313223313231322331311211331322331323211331312312323   >>      G211313312113313223313231322331311211331322331323211331312312322   >>