Conversion from Fahrenheit to Celsius (Code correct but test cases are wrong)

#include
using namespace std;
int main() {
int n;
cin>>n;
int max;
cin>>max;
int step;
cin>>step;
if(n>=0 && n<100 && max<500 && step>0) {
for(int i=n;i<=max;i=i+step) {
int c=(5*(i-32))/9;
cout<<i<<" - "<<c<<endl;
}}
else {
return 0;}
}