public class Fibonacci
{
public static void main( String args[] )
{
int current = 0;
int previous = 1;
int beforeprevious = 0;
for( int i=0; i<20; i++)
{
current = previous + beforeprevious;
System.out.print( current + " " );
beforeprevious = previous;
previous = current;
}
}
}