C211111133131323223313233313231133132333132311221123231333132313233313232332321   >>    C21111113313132322331323331323113313233313231122112323133313231323331323233232   <<    C211111133131323223313233313231133132333132311221123231333132313233313232332323   >>      C211111133131323223313233313231133132333132311221123231333132313233313232332322   >>