C211111133131323223313233313231133132333132311221123231333132322122311   >>    C21111113313132322331323331323113313233313231122112323133313232212231   <<    C211111133131323223313233313231133132333132311221123231333132322122313   >>      C211111133131323223313233313231133132333132311221123231333132322122312   >>