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#include <iostream>
#include <fstream>
#include <algorithm>
#include <cstring>
using namespace std;
ifstream fin("restante.in");
ofstream fout("restante.out");
int n,k,i,j,sw;
char s[36001][17];
int main()
{
fin>>n;
for(i=1;i<=n;i++)
{
fin>>s[i];
std::sort(s[i],s[i]+strlen(s[i]));
cout<<0<<s[i];
}
for(i=1;i<=n;i++)
{
sw=0;
for(j=1;j<=n&&!sw;j++)
if(strcmp(s[i],s[j])==0&&i!=j) sw=1;
if(!sw) k++;
}
fout<<k;
return 0;
}