Latex Test

$123$

$\text{123, CURELMUS}$

$\mathtt{123, CURELMUS}$

$x^{x^{x^x}}$

$\frac{x}{y} \times \frac{z}{w}$

$$f_i=a \% \times f_{i-5}+ \frac{1-a \%}{4} \times (f_{i-1}+f_{i-2}+f_{i-3}+f_{i-4})$$