C111123313331323113313331323133313331333132331211113313331323132232321333231   >>    C11112331333132311331333132313331333133313233121111331333132313223232133323   <<    C111123313331323113313331323133313331333132331211113313331323132232321333233   >>      C111123313331323113313331323133313331333132331211113313331323132232321333232   >>