C2123132222131133131121131211113313333133313331333132233132233312231   >>    C212313222213113313112113121111331333313331333133313223313223331223   <<    C2123132222131133131121131211113313333133313331333132233132233312233   >>      C2123132222131133131121131211113313333133313331333132233132233312232   >>