//*******************************************************************
// NOTE: please read the 'More Info' tab to the right for shortcuts.
//*******************************************************************
 
import java.lang.Math; // headers MUST be above the first class
 
public class Main {
 
    static Runnable lambda = ()->{long b=3,c,n;for(;;){for(n=1;;n++){c=b+2*n*n;double d=Math.sqrt(c*c-b*b);if(d==(int)d&b<d){System.out.println(b);break;}}b=c;}};
 
    public static void main(String[] args) {
        lambda.run();
    }
}

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