/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
int sum =0;
for(int a=610;a<=1;a--)
{
sum=sum+a*(a-1);
}
}
}
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