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import java.util.*;
public class ch_2 {
public static void main( String argv[] ) throws Exception {
int size = Integer.parseInt( argv[ 0 ] );
if ( size <= 3 )
throw new Exception( "Cannot work with a size less than 3!" );
List<Integer> nums = new LinkedList<Integer>();
if ( size % 2 == 0 ) {
for ( int i = 1; i < size / 2 ; i++ ) {
nums.add( i );
nums.add( i * -1 );
}
}
else {
for ( int i = 1; i < ( size - 1 ) / 2 ; i++ ) {
nums.add( i );
nums.add( i * -1 );
}
int next = ( size - 1 ) / 2 + 1;
nums.add( next );
nums.add( next + 1 );
nums.add( ( next * 2 + 1 ) * -1 );
}
boolean printedOne = false;
for ( int i : nums ) {
System.out.print( i + ( printedOne ? ", " : "" ) );
printedOne = true;
}
System.out.println();
}
}
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