C2123132222131133131121131211113313231322331333132313223313221311211   >>    C212313222213113313112113121111331323132233133313231322331322131121   <<    C2123132222131133131121131211113313231322331333132313223313221311213   >>      C2123132222131133131121131211113313231322331333132313223313221311212   >>