C2123132222131133131121131211113313333133313331333132233133313221322311   >>    C212313222213113313112113121111331333313331333133313223313331322132231   <<    C2123132222131133131121131211113313333133313331333132233133313221322313   >>      C2123132222131133131121131211113313333133313331333132233133313221322312   >>