#include<fstream.h>


int main()
{

int v[30000];
long n, m, k, i, j, p, u, s;
ifstream in("distinct.in");
ofstream out("distinct.out");
in>>n>>k>>m;
for (i=1; i<=n; i++)
  in>>v[i];
for (i=1; i<=m; i++)
  {
     in>>p>>u;
     s=0;  	
     for (j=p; j<=u; j++)
        {for (k=j+1; k<=u; k++)
          if (v[k]==v[j]) v[k]=0;
	 s+=v[j];
	 
	}
     out<<s<<'\n';
  }
out.close();
in.close();
return 0;
}