وَلَبِثُوْا فِيْ كَهْفِهِمْ ثَلٰثَ مِائَةٍ سِنِيْنَ وَازْدَادُوْا تِسْعًا ( الكهف: ٢٥ )
Wa labisoo fee kahfihim salaasa mi'atin sineena wazdaadoo tis'aa (al-Kahf 18:25)
And they remained in their cave for three hundred years and exceeded by nine. (Al-Kahf  : 25)
1 Mufti Taqi Usmani
They stayed in their Cave for three hundred years and added nine.