C211111133131323223313233313231133132333133313232112323132313232321   >>    C21111113313132322331323331323113313233313331323211232313231323232   <<    C211111133131323223313233313231133132333133313232112323132313232323   >>      C211111133131323223313233313231133132333133313232112323132313232322   >>