int main(){

const int C = 100;
const double PI=3.1415f;
const double K = 10.0f;

double i=0.0f;

for(int r =0;r<C;r++){
double t=0;

for(double x=1.0f;x<K ; x=x+1.0f){
t = t + sin((x* PI )/2.0f ) * (sin( x * i))/(x*x);
}
cout << static_cast<int>(round(fabs(t*(8.0f/(PI*PI))) * 2)) << endl;;

r%4==0 ? i=0.0f:i=i+PI/4.0f;
}



return 0;
}