### looping of equality function

Hi, I have the equation `x^4+y^4=z^3`

. I want to run each variable from `-100`

till `100`

to see which numbers satisfy this equation. Here is what I have done:

```
x,y,z= var('x y z')
for x in range(-100, 100):
for y in range(-100, 100):
for z in range(-100, 100):
x^4+y^4==z^3
print(x,y,z)
```

There is definitely something wrong with the coding that's not giving me the desired answer. Can someone enlighten me, please.