C211111133131323223313233313231133132333133313231323211331323132121   >>    C21111113313132322331323331323113313233313331323132321133132313212   <<    C211111133131323223313233313231133132333133313231323211331323132123   >>      C211111133131323223313233313231133132333133313231323211331323132122   >>