Correct

如许

/ rú xǔ / 
Strokes

Example

As a Pronoun

so much; so many

1
Wǎngfèi
枉费
rú
如
xǔgōngfū
许工夫
  
。

So much time has been wasted.

As a Pronoun

so; such

2
Xínglù
行路
rú
如
xǔnán
许难
  
。

The journey was so difficult.