what is the solution to this C program problem? I don't understand what the intended output supposed to be$.$

You have two threads; $f1()$ and $f2(),$ and two global variables $n$ & $m$ as shown

below:

Use Pthread condition variable$($s$)$ such that $f1$ and $f2$ will print the following output:

$>\frac{.}{e}x2$

$f2=3$

$f1=7$

$>\frac{.}{e}x2$

$f1=7$

$f2=3$

$>\frac{.}{?}$ ex $2$

$f2=3$

$fl=7$f$2=3$

$fl=7$