C2123132222131133131121131211113313231322331333133311211331333132322332211   >>    C212313222213113313112113121111331323132233133313331121133133313232233221   <<    C2123132222131133131121131211113313231322331333133311211331333132322332213   >>      C2123132222131133131121131211113313231322331333133311211331333132322332212   >>