Python

for i in range(100,1000):
    s=str(i)
    if int(s[0])**3+int(s[1])**3+int(s[2])**3==i:
        print(i,end=" ")

C++

#include <bits/stdc++.h>
using namespace std;
#define int long long 

signed main(){
    for(int i=1;i<=9;i++){
        for(int j=0;j<=9;j++){
            for(int k=0;k<=9;k++){
                int re=k+10*j+100*i;
                int re2=k*k*k+j*j*j+i*i*i;
                if(re2==re)cout<<re<<" ";
            }
        }
    }
    return 0;
}