xushi

#include <math.h>
#include <stdio.h>
#include <string.h>

int main()
{

                short j=0;
                double a = 2, b=0, finalAnswer=0;


                for(j=0; j<64; j++)
                {
                        b = pow(a,2);
                        a = b;
                        finalAnswer += b;
                printf("%s", finalAnswer);
                }
        return 0;
}