#include <stdio.h>
int main(void) {
int n, i, sum;
for (n = 1; n <= 10000; n++){
sum = 0;
for(i = 1; i < n; i++){
if (n%i == 0){
sum = sum + i;
}
}
if(sum == n){
}
}
return 0;
}
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