#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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