C211111133131323223313233313231133132333132311221123231323233311   >>    C21111113313132322331323331323113313233313231122112323132323331   <<    C211111133131323223313233313231133132333132311221123231323233313   >>      C211111133131323223313233313231133132333132311221123231323233312   >>