C2123132222131133131121131211113313231322331333133311211331333132233133313321   >>    C212313222213113313112113121111331323132233133313331121133133313223313331332   <<    C2123132222131133131121131211113313231322331333133311211331333132233133313323   >>      C2123132222131133131121131211113313231322331333133311211331333132233133313322   >>