第一个点wa

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int n,a,s,d,f;
    cin>>n;
    if((n%100!=0)||(n%101!=0))
    {
        a=n/100;
        s=(n/10)%10;
        d=n%10;
        f=d*100+s*10+a;
    }
    else if(n%100==0)
        cout<<"0"<<"0"<<n/100<<endl;
	else if(n%101==0)
	    cout<<n;       
    cout<<f<<endl;
	return 0;
}