G21123231123313132313232233131313231313231323223313232211113321   >>    G2112323112331313231323223313131323131323132322331323221111332   <<    G21123231123313132313232233131313231313231323223313232211113323   >>      G21123231123313132313232233131313231313231323223313232211113322   >>