#include <iostream.h>
#include <stdlib.h>



int main()
{

double a,b,c,d,cd,faka,fakb,sum,fakcd,j;


a=1;
b=4;
c=8;
d=6;


while(b<=37)
{
cd=c*d;
while(a>0)
{ faka=faka+(a*(a-1));
a=a-2;
}
while(b>0)
{ fakb=fakb+(b*(b-1));
b=b-2;}
while(cd>0){
fakcd=fakcd+(cd*(cd -1));
cd=cd-2;
}


sum=sum+( faka+(j*fakb) / (-j*fakcd));

a=a+2;
b=b+3;
c=c+2;
d=d+1;
}



cout<<"sum = "<<sum<<endl;

 system("PAUSE");
  return 0;
}