#include<bits/stdc++.h>
using namespace std;
int main()
{
string s;
while(cin>>s && s!="#")
{
if(next_permutation(s.begin(),s.end()))
{
cout<<s<<endl;
}
else
{
cout<<"No Successor"<<endl;
}
}
return 0;
}
using namespace std;
int main()
{
string s;
while(cin>>s && s!="#")
{
if(next_permutation(s.begin(),s.end()))
{
cout<<s<<endl;
}
else
{
cout<<"No Successor"<<endl;
}
}
return 0;
}
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