#include<stdio.h>
#include<string.h>
int main()
{
    char str[]="Programming in c";
    char result[50];
    int k=0;
    for(int i=0;str[i]='\0';i++)
    {
        int found=0;
    }
    for(int j=0;j<k;j++)
    {
        if(str[i]==result[j] || str[i]=' '){
            found=1;
            break;
        }
    }
    if(!found)
    {
        result[k++]=str[i];
    }
   result[k]='\0';
   printf("%s",result);
   return 0;
}
    

}