//abcdgedgshaaa---->abcdgesh
///
#include<iostream>
#include<bitset>
using namespace std;
void DeleteDuplicateContent(char * str)
{
int lengtg=strlen(str);
char *p=(char*)malloc(length+1);
char *q=p;
bitset<32> flag;
for(int i=0;i<length;i++)
{
int k=str[i]-'a';
if(!flag[k])
{
flag.set(k);
*p++=str[i];
}
}
*p='\0';
cout<<q<<endl;
}
int main()
{
char a[]="abcdgedgshaaa";
DeleteDuplicateContent(a);
return 0;
}