#include <conio.h>
 #include <stdio.h>
 #include <math.h>
int main()
 {
 int a,r,c,d;
 int b=1;
 int e=0;
 printf ("cifra.in: \n");
 scanf ("%d",&a);  
 int i=0;
 while (i<a)
{
               d=pow(b,b);
               c=d+e;
               e=c;
               b=b+1;
               i=i+1;
}
printf ("cifra.out:\n");
printf ("%d  \n",c);
getch();

 }