#include
#include
#include
using namespace std;
int main()
{
string s;
set mySet;
set::iterator it;
int k=0;
cout << "s = ", cin >> s, cout << endl;<br> for(int i=0;i mySet.insert(s[i]);
for(it=mySet.begin(); it!=mySet.end(); ++it)
cout<<*it<<" ";<br> k=mySet.size();
cout << endl << "k = " << k;<br> return 0;
}